Given phrases that describe the relationship between two words/phrases as options, extract the word/phrase pair and the corresponding lexical relationship between them from the input text. The output format should be "relation1: word1, word2; relation2: word3, word4". Options: product/material produced, manufacturer, distributed by, industry, position held, original broadcaster, owned by, founded by, distribution format, headquarters location, stock exchange, currency, parent organization, chief executive officer, director/manager, owner of, operator, member of, employer, chairperson, platform, subsidiary, legal form, publisher, developer, brand, business division, location of formation, creator.

Join the Nation's Conversation To find out more about Facebook commenting please read the Conversation Guidelines and FAQs Facebook showed tech IPOs are a zero-sum game (Investors always lose) John Shinal, Special for USA TODAY 4:51 p.m. EDT September 29, 2015 In this March 25, 2015 file photo, Mark Zuckerberg talks about the Messenger app during the Facebook F8 Developer Conference in San Francisco.

Answer: founded_by: Facebook, Mark Zuckerberg; creator: Facebook, Mark Zuckerberg