premise: Hipmunk, stylized as hipmunk, is a consumer-oriented online travel company headquartered in San Francisco, California. It was co-founded by Adam Goldstein and Reddit co-founder Steve Huffman in 2010. The company focuses on the visual organization of flight search results. It received increased media attention when Google announced its flight search service in September 2011.
hypothesis: Hipmunk was operating in 2015.
reason: It said when it was started but not whether it ended or stopped. It may have stopped business or been taken over by someone else. 