9541
Since the 1990 s , the demand for skilled information technology workers from local startups and nearby Silicon Valley has attracted white-collar workers from all over the world and created a high standard of living in San Francisco .
 location: Silicon Valley; location: San Francisco
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
 Entities: Silicon Valley, San Francisco 
Answer:
 location: Silicon Valley; location: San Francisco