A harvester seen at work in the Burgas region, Bulgaria, as the end of harvest of wheat nears, July 16, 2015. Bulgarian grain producers expect average yields between 450 and 500 kg per hectare. The most frequent “guests” during the harvesting campaign are flocks of storks, looking for food. (Photo by Todor Stavrev/EPA)

This picture taken on July 15, 2015 shows a rescuer making his way through floodwaters after heavy rainfall hit the area in Songtao county in Tongren, in southwest China's Guizhou province. (Photo by AFP Photo/Stringer)

This picture taken on July 15, 2015 shows rescuers pulling a boat through floodwaters after heavy rainfall hit the area in Songtao county in Tongren, in southwest China's Guizhou province. (Photo by AFP Photo/Stringer)

Residents boat in flood waters caused by a rainstorm on July 15, 2015 in Songtao Miao Autonomous County, Tongren City, Guizhou Province of China. One person has died after being struck by lightning and about 135,000 people have been affected by a rainstorm which hit Songtao Miao Autonomous County on Tuesday night to Wednesday morning. (Photo by ChinaFotoPress/ChinaFotoPress via Getty Images)

Riot police officers run away from fire as anti-austerity protesters throw petrol bombs during clashes in Athens, Wednesday, July 15, 2015. Greece's prime minister was fighting to keep his government intact in the face of outrage over an austerity bill that parliament must pass Wednesday night if the country is to start negotiations on a new bailout and avoid financial collapse. The raft of consumer tax increases and pension reforms will condemn Greeks to years of more economic hardship and has fueled anger among the governing left-wing Syriza party. (Photo by Emilio Morenatti/AP Photo)

Carlos Ramirez, of West Palm Beach, Fla., cools off under a misting fan while visiting Zoo Atlanta, Wednesday, July 15, 2015, in Atlanta. Severe thunderstorms will be possible over the southern half of Georgia and eastern South Carolina as temperatures hover around the ninety degree mark. (Photo by David Goldman/AP Photo)

In this July 16, 2015 photo, waves crash against Katsurahama in Kochi on the island of Shikoku, western Japan, as a strong tropical storm sweeps across western Japan. Tropical Storm Nangka caused serious flooding Friday morning, July 17, and disrupted air and train travel as it crossed the island of Shikoku and the main Japanese island of Honshu. (Photo by Kyodo News via AP Photo)

In this July 16, 2015 photo, waves crash against Katsurahama in Kochi on the island of Shikoku, western Japan, as a strong tropical storm sweeps across western Japan. (Photo by Kyodo News via AP Photo)

An explosion at a petrochemical plant is seen in Rizhao, Shandong province, July 16, 2015. According to Xinhua News Agency, a fire broke out after the explosion, which was caused by a liquified hydrocarbon leak at the plant, on Thursday morning. There was no report of casualties yet. (Photo by Reuters/China Daily)

This image released by HBO shows a scene from “Game of Thrones”. The series was nominated for an Emmy Award on Thursday, July 16, 2015, for outstanding drama series. The 67th Annual Primetime Emmy Awards will take place on September 20, 2015. (Photo by HBO via AP Photo)

A Chinese woman poses for photo outside the Uniqlo flagship store where a steamy video purportedly taken inside one of its fitting room showing a couple apparently having s*x in Beijing, Thursday, July 16, 2015. While online searches for the Japanese clothing brand soared after the viral spread of the video, it has also drawn the concern of the police and China's highest web regulator who are investigating whether it was a vulgar marketing gimmick. (Photo by Ng Han Guan/AP Photo)

Chinese women take photos outside the Uniqlo flagship store where a steamy video purportedly taken inside one of its fitting room showing a couple apparently having s*x in Beijing, Thursday, July 16, 2015. (Photo by Ng Han Guan/AP Photo)

Youth cover a pole with oil as they prepare it for a competition over Havana Bay during a small fair in the Casablanca neighborhood of Havana, Cuba, Thursday, July 16, 2015. Casablanca residents have brought back lost traditions to their 420-year-old neighborhood, including this game in which contestants try to walk to the end of a wooden pole without slipping off into the water. A money prize is placed at the end of the pole for the winner. (Photo by Ramon Espinosa/AP Photo)

Britain's Queen Elizabeth prepares to unveil a plaque during a tour of Sydney Russell School in Dagenham, east London, July 16, 2015. The Queen and Prince Philip were visiting various parts of Barking and Dagenham as part of the celebrations to mark the fiftieth anniversary of the London Borough. (Photo by Toby Melville/Reuters)

The preserved skeleton of the new short-armed and winged feathered dinosaur Zhenyuanlong suni from the Early Cretaceous (ca. 125 million years ago) of China is shown in this handout photo provided by the University of Edinburgh on July 15, 2015. Scientists have unearthed a spectacularly preserved, nearly complete fossil in northeastern China of a feathered dinosaur with wings like those of a bird, although they doubt the strange creature could fly. The researchers on July 16, 2015 said the fast-running meat-eater was about 6 feet (1.8 meters) long and covered with simple hair-like feathers over much of its body, with large, quill-like feathers on its wings and long tail. (Photo by Junchang Lu/Reuters/University of Edinburgh)

An audience member makes a video with a mobile phone as Democratic presidential candidate Hillary Clinton is introduced during a campaign stop in a back yard of a home in Windham, New Hampshire July 16, 2015. (Photo by Brian Snyder/Reuters)

Law enforcement work around the Chattanooga Police's bomb squad truck before leaving a staging area on Hixson Pike to investigate the nearby home of Mohammod Abdulazeez in Chattanooga, Tennessee July 16, 2015. Abdulazeez was named by the FBI as the gunman in a shooting at both the Amnicola Highway Armed Forces Career Center and the Naval Operational Support Center. Four U.S. Marines were killed on Thursday by a gunman who opened fire at two military offices in Chattanooga, before being fatally shot in an attack officials called a brazen act of domestic terrorism. (Photo by Doug Strickland/Reuters/Chattanooga Times Free Press)

Choi Chi-hun, President and CEO at Samsung C&T Corporation, stands in front of media upon his arrival at a general meeting of stockholders in Seoul, South Korea, July 17, 2015. Win or lose in its bid to derail an $8 billion Samsung Group merger on Friday, U.S. hedge fund Elliott Associates is likely to remain an irritant for the biggest of South Korea's powerful conglomerates. Even if construction firm Samsung C&T Corp secures the two-thirds of shares voted on Friday needed for a buyout offer from sister company Cheil Industries, Elliott shows no sign of going away. The fund is widely expected to continue challenging Samsung with lawsuits as a shareholder that would have more than 2 percent of the merged firm. (Photo by Kim Hong-Ji/Reuters)

Pig farm owner Sam Wang collects sperm as he demonstrates how to use an iSperm kit in Yunlin, central Taiwan, Taiwan, July 13, 2015. Taiwanese start-up Aidmics is hoping to cash in on the $40 billion global human fertility market with an iPad compatible gadget it calls iSperm. Aidmics initially developed the product to help livestock farmers, but founder Agean Lin now plans to seek U.S. Food and Drug Administration approval next year to expand its use to men. (Photo by Edward Lau/Reuters)

Olympic skier Lindsey Vonn attends Nickelodeon's “Kid's Choice Sports 2015” in Los Angeles July 16, 2015. (Photo by Phil McCarten/Reuters)

Snowboarder Amy Purdy attends Nickelodeon's “Kid's Choice Sports 2015” in Los Angeles July 16, 2015. (Photo by Phil McCarten/Reuters)

Australian Prime Minister Tony Abbott (C) and his wife Margaret prepare to lay a wreath for the Australian victims of Malaysia Airlines jet MH17 at a ceremony unveiling a memorial outside Parliament House in Canberra, Australia, July 17, 2015. Australia urged the United Nations Security Council on Tuesday to support the establishment of an international tribunal to prosecute those suspected of downing Malaysia Airlines jet MH17 in eastern Ukraine last year. (Photo by David Gray/Reuters)

A relative of an Australian victim of Malaysia Airlines jet MH17 touches a memorial that was unveiled outside Parliament House in Canberra, Australia, July 17, 2015. (Photo by David Gray/Reuters)

SoftBank's human-like robot named “Pepper” performs to welcome as a concierge at an entrance of Mizuho Financial Group's Mizuho bank branch in Tokyo, Japan, July 17, 2015. Pepper starts working as a concierge of the bank to welcome customers. (Photo by Yuya Shino/Reuters)

German Chancellor Angela Merkel smiles as she arrives for a special meeting of the Christian Democratic Union (CDU) party faction on the eve of a special session of the parliament Bundestag about negotiations with Greece for a new bailout in Berlin, Germany, Thursday, July 16, 2015. (Photo by Markus Schreiber/AP Photo)

An undated handout image provided by amusement park operator Huis Ten Bosch Co., Ltd. shows a woman standing before a receptionist dinosaur robot at the “Henn na Hotel” (or Weird Hotel) in Sasebo, Nagasaki prefecture, southwestern Japan, 16 July 2015. Almost entirely run by robots, the new hotel will open to the public on 17 July. (Photo by Huis Ten Bosch/EPA)

An undated handout image provided by amusement park operator Huis Ten Bosch Co., Ltd. shows a cloak robot operating at the “Henn na Hotel” (or Weird Hotel) in Sasebo, Nagasaki prefecture, southwestern Japan, 16 July 2015. (Photo by Huis Ten Bosch/EPA)

A handout photo released by the NGO Katala Foundation Incorporated (KFI) on 16 July 2015 shows a Filipino staff member assess the arrival of thousand seized pond turtles on top of a truck prior to unloading at a government facility in Puerto Princesa in the island of Palawan, western Philippines. On 17 June 2015, about 4312 live freshwater turtles and 90 dead ones had been seized in Rio Tuba, Bataraza, Palawan, Philippines. Among the confiscated turtles were more than 3,800 Palawan Forest Turtles (Siebenrockiella leytensis) A critically endangered species under the International Union for Conservation of Nature (IUCN) which are endemic in northern Palawan. (Photo by EPA/Katala Foundation Incorporated)

Soldiers of the guard battalion of the Russian army pass by the statue “The Motherland Calls!” at the Mamayev Kurgan memorial complex in Volgograd, Russia, 15 July 2015. The statue is part of memorial complex that commemorates the Battle of Stalingrad (today Volgograd) in the Second World War. The city on the Volga will host matches in the 2018 football World Cup. (Photo by Marcus Brandt/EPA)

General view of a forest fire near Calvos de Randin, Galicia, northwestern Spain, 15 July 2015. Ten forest brigades, five pumps, three helicopters and six airplanes are working to extinguish the fire. (Photo by Brais Lorenzo/EPA)

A visitor pauses while looking at the “Conversations: African and African American Artworks in Dialogue” exhibit at the Smithsonian Museum of African Art on the National Mall July 15, 2015 in Washington, DC. The museum posted a message to visitors Tuesday that addresses the allegations of rape made against comedian Bill Cosby, who loaned more than 100 pieces of art to the exhibit. The message states that the museum does not condone Cosby's behavior but will continue to show the work because the exhibit is about the artworks, the artists who created them and the important relationship between them. (Photo by Chip Somodevilla/Getty Images)

People look at the Jellyfish display at the EPSON Aqua Park Shinagawa on July 15, 2015 in Tokyo, Japan. The EPSON Aqua Park Shinagawa, previously known as EPSON Shinagawa Aqua Stadium, reopened to the public on July 10, 2015 after an extensive renovation. The animal and fish displays have been enhanced with high-tech neon lights, touch screens and audiovisual shows. (Photo by Chris McGrath/Getty Images)

Visitors view the Confederate Memorial Carving, depicting three Confederate heroes of the US Civil War, President Jefferson Davis (L), General Robert E. Lee (C) and Thomas J. “Stonewall” Jackson (R) on Stone Mountain in Stone Mountain, Georgia, USA, 15 July 2015. The Atlanta chapter of the National Association for the Advancement of Colored People (NAACP) has called for the elimination of all Confederate symbols from the state-owned Stone Mountain Park, including the 27.5-meter-high, 58-meter-wide sculpture. (Photo by Erik S. Lesser/EPA)

An employee prepares an ancient Egyptian child mummy for a computer tomographic scan in the St. Bernward hospital in Hildesheim, Germany, 15 July 2015. Two child mummies of museums are to be examined in the hospital. Different peculiarities of the two mummies raised questions that can be clarified through this method. The examination could lead to new findings in the research of the ancient Egyptian mummification tradition. (Photo by Peter Steffen/EPA)

General view showing the Colima volcano as it spews lava in western Mexico, 15 July 2015. Specialists who monitor the activity of the volcano, located on the border of the states of Jalisco and Colima, verified that “the dome no longer exists”, which means that the volcano “would be quiet” in the coming hours. (Photo by Ulises Ruiz Basurto/EPA)

Actress and mom Vanessa Lachey cooled down with icy, refreshing Original Brand PopsicleAE pops at Nickelodeons Kids Choice Sports 2015 on July 16, 2015 in Los Angeles, California. (Photo by Gabriel Olsen/Getty Images for Unilever/Popsicle)

Bangladeshi Muslims try to climb on to the roof of an overcrowded train as they head to their homes ahead of Eid al-Fitr at a railway station in Dhaka, Bangladesh, Thursday, July 16, 2015. Hundreds of thousands of people working in Dhaka plan to leave for their home towns to celebrate with their family the upcoming Eid al-Fitr. (Photo by A. M. Ahad/AP Photo)

Bangladeshi travellers cram onto a train as they try to get home to their respective villages to be with their families ahead of the Muslim festival of Eid al-Fitr in Dhaka on July 16 , 2015. Eid al-Fitr is the largest festive event in the Muslim calendar and marks the end of the month of Ramadan. (Photo by Munir Uz Zaman/AFP Photo)

Local children holding toy guns stand at the site of the crashed Malaysia Airlines Flight 17 plane, near the village of Hrabove, eastern Ukraine, Thursday, July 16, 2015. A year since a Malaysia Airlines Boeing 777 was blown out of the sky over war-ravaged eastern Ukraine, killing 298 people, there has been little official word of progress in determining what brought down Flight MH17. (Photo by Mstyslav Chernov/AP Photo)

Russia-backed separatist APC rides by an Orthodox cross with a sign reading Save and Guard, with a memorial to the victims of the Malaysian Airlines MH17 plane crash, in the back, near the village of Hrabove, eastern Ukraine, Thursday, July 16, 2015. (Photo by Mstyslav Chernov/AP Photo)

A worker removes to a safer area an iguana, who meandered to close to the landing strip at the eco-friendly Seymour of Baltra Airport, Galapagos Islands, Ecuador, Wednesday, July 15, 2015. This airport has been declared by U.S Green Building Council as the world's first ecological airport, especially designed to optimize the island breeze and sunlight, as well as a water reuse system. (Photo by Dolores Ochoa/AP Photo)

Visitors look at an installation titled “Scenography for a Chinese Science Fiction Opera” on display as part of exhibition “Ming Wong: Next Year” in Beijing, China, 16 July 2015. Mimicking three dimensional stage design of traditional theatre, the Singaporean artist used wooden planks to build a futuristic set resembling the interior of a spaceship and swirling clouds. The installation is on display at the Ullens Center for Contemporary Arts until 09 August. (Photo by How Hwee Young/EPA)

A man takes a child from a swimmer wearing a hood known as facekini near the beach in Qingdao, east China's Shandong province, China, 16 July 2015. The hood is meant to protect the swimmer's face from sun tan, sting injury of jellyfish and insolation. (Photo by Wang Haibin/EPA)

A swimmer wearing a hood known as facekini plays on the beach in Qingdao, east China's Shandong province, China, 16 July 2015. (Photo by Wang Haibin/EPA)

HitchBOT, a hitchhiking robot, is formally introduced to an American audience, during a program at the Peabody Essex Museum Thursday, July 16, 2015, in Salem, Mass. HitchBOT is set to embark on its' first cross-country hitchhiking trip of the U.S., after completing similar tips in Canada and Europe. The plans are for hitchBot to leave the Boston area Friday with a final destination goal of reaching San Francisco. (Photo by Stephan Savoia/AP Photo)

Kelsea Ballerini performs in concert at Gramercy Theatre on July 16, 2015 in New York City. (Photo by Dave Kotinsky/Getty Images)

Karen Craig attends the launch of Dino Tales and Safari Tales at the American Museum of Natural History with Kuato Studios on July 16, 2015 in New York City. (Photo by Brad Barket/Getty Images for Kuato Studios)

A vendor sells teddy bears and other soft toys in the streets of Granada, city some 45 km from Managua, Nicaragua, on July 16, 2015. (Photo by Inti Ocon/AFP Photo)

Spectators watch as thousands of Jaffa candies race down Baldwin Street on July 17, 2015 in Dunedin, New Zealand. The residential street is the steepest in the world and hosts the annual race to raise money for charity. (Photo by Rob Jefferies/Getty Images)

Theater department manager and assistant makeup designer Audrey Siegler applies eyebrows to Christian Meany before the dress rehearsal of Shrek the Musical on Wednesday, July 15, 2015, at the Patel Conservatory in Tampa, Fla. The performance is part of Patel's summer production camps. (Photo by James Borchuck/The Tampa Bay Times via AP Photo)