Bellatrix, left, and Addie, right, have their picture taken by pedestrians as they are walked outside the Pennsylvania Convention Center, host of the World Meeting of Families conference, Friday, September 25, 2015, in Philadelphia. Pope Francis wraps up his U.S. visit this weekend in Philadelphia, where he speaks in front of Independence Hall and celebrates Mass on the Benjamin Franklin Parkway to close out a big rally on Catholic families. (Photo by David Goldman/AP Photo)
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