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A few weeks ago , Google announced that it planned to install a large solar energy system on the roof of its headquarters in Mountain View , Calif. '' Green tech '' is all the rage right now in Silicon Valley , with venture money pouring into environmental start-ups , and hip technology companies falling all over themselves to show their earth-friendly bona fides .
 location contains: Silicon Valley, Mountain View
Given a phrase that describes the relationship between two words, extract the words and the lexical relationship between them. The output format should be "relation1: word1, word2; relation2: word3, word4". 
Option: ethnicity, place lived, geographic distribution, company industry, country of administrative divisions, administrative division of country, location contains, person of company, profession, ethnicity of people, company shareholder among major shareholders, sports team of location, religion, neighborhood of, company major shareholders, place of death, nationality, children, company founders, company founded place, country of capital, company advisors, sports team location of teams, place of birth 
Text: {0} 
Answer:
 location contains: Silicon Valley, Mountain View