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The rejection comes nearly a month after Roche offered $ 89 per share for the rest of  South San Francisco  California-based  Genentech  .
 city of headquarters: South San Francisco, Genentech
Given options, please tell me the relationships of all the listed entity pairs.Output format is "relation1: word1, word2; relation2: word3, word4". 
Option: cities of residence, top members employees, members, alternate names, origin, state or provinces of residence, title of person, spouse, city of headquarters, NA, founded by, state or province of headquarters, employee of, countries of residence, country of birth, founded, subsidiaries, country of headquarters 
Text: {0} 
 Entity Pairs:  South San Francisco, Genentech 
Answer:
 city of headquarters: South San Francisco, Genentech