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.
Text: Gavin Newsom and 2015 NBA Champion Golden State Warriors Center, Festus Ezeli, joined Nasdaq officials, CEO Bob Greifeld and Vice Chairman Bruce Aust, in ringing the Nasdaq Closing Bell remotely from San Francisco in celebration of the launch of the Nasdaq Entrepreneurial Center.
user
headquarters_location: Golden State Warriors, San Francisco
assistant