Question: What pornographic media and social networking site third most popular to the world's largest pornographic video sharing and viewing website registered to the Polish company, WGCZ Holding?
{'answer': 'xHamster', 'supporting_facts': [['XHamster', 0], ['XHamster', 1], ['XHamster', 2], ['XHamster', 3], ['XVideos', 1]]}