5-year-old Chinese girl Wang Anna prepares meals for her grandmother and great-grandmother at home in Zhuyuan village, Guizhou province, China on March 3, 2017. Chinese girl called Wang Anna, 5, takes care of her ill grandmother and 92-year-old great-grandmother on her own every day in a mountainous village in Zhima town, Zunyi city, southwest China's Guizhou province. Her father went to jail before she was born and her mother remarried after gave birth to her. Although she is just five years old, she started to shoulder the responsibility to look after ill grandmother and elderly great-grandmother. (Photo by Imaginechina/Rex Features/Shutterstock)

In this November 3, 2015 file photo, Afghan Taliban fighters listen to Mullah Mohammed Rasool, the newly-elected leader of a breakaway faction of the Taliban, in Farah province, Afghanistan. Despite US President Donald Trump’s pronouncement that there would be no talks with the Taliban following a series of deadly attacks in Kabul, officials say talks continue, but neither side trusts the other and neither believes the other negotiates independently. (Photo by AP Photo/Stringer)

In this August 3, 2015, photo, residents make their way through floodwaters in Minbu, Magway division, in Myanmar. The Ministry of Social Welfare, Relief and Resettlement said that more than 200,000 people are affected in 11 of the country's 14 states and divisions by flooding. In addition to damage to houses and farmland, infrastructure has been very badly hit, with roads and rail lines cut in many places and telecommunication links broken. (Photo by Hkun Lat/AP Photo)

Devotees offer prayer by rolling on the street during the final day of the month-long Swasthani festival of Bhaktapur, near Kathmandu, February 3, 2015. During the festival, devotees recite one chapter of a Hindu tale daily from the 31-chapter sacred Swasthani Brata Katha book, that is dedicated to God Madhavnarayan and Goddess Swasthani, alongside various other gods and goddesses and the miraculous feats performed by them. The devotees also go on pilgrimages to various temples, perform religious rituals, take a holy bath in the rivers and fast for a month, especially among women who believe fasting helps in their family's well-being or in getting them a good husband. (Photo by Navesh Chitrakar/Reuters)

A view of the screen of a ZaZZZ vending machine that contains cannabis flower, hemp-oil energy drinks, and other merchandise at Seattle Caregivers, a medical marijuana dispensary, in Seattle, Washington February 3, 2015. Vending machines selling medical marijuana opened for business in Seattle on Tuesday, in what the company providing them billed as a first-in-the-state innovation that it expects to expand to other cities and states where pot is legal as medicine. (Photo by David Ryder/Reuters)

A competitor calls with a shell at the German championships in Deer-Calling at the “Jagd & Hund” (hunting & dog) exhibition in Dortmund February 6, 2015. Competitors use specially designed instruments or ox horns to imitate the mating call of red deers. About 750 exhibitors will present their latest developments at the 34th “Jagd & Hund” exhibition, which runs from February 3 to February 8. (Photo by Ina Fassbender/Reuters)

Seven-year-old Dihan Awallidan from Garut, West Java, is not like other boys his age. While most children crave chocolate and candy, Dihan is addicted to cigarettes. The second-grader picked up the habit at the age of 3 and now smokes up to three packs a day, using the pocket money he gets from his enabling parents to feed his addiction. (Photo by Rezza Estily/JG Photo)

This picture taken on September 3, 2014 shows a man taking pictures of floodwater released from the Three Gorges Dam, a gigantic hydropower project on the Yangtze river, in Yichang, central China's Hubei province, after heavy downpours in the upper reaches of the dam caused the highest flood peak of the year. Eleven people died and 27 others are missing after torrential rains battered southwest China's Chongqing, a municipality in the upper reaches of the Three Gorges Dam, causing thousands of houses to collapse, state media said. (Photo by AFP Photo/Stringer)