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The majority of these cities and towns are within one of five metropolitan areas : the Los Angeles Metropolitan Area , the San Francisco Bay Area , the Riverside-San Bernardino Area , the San Diego metropolitan area , or the Sacramento metropolitan area .
 Los Angeles Metropolitan Area, San Francisco Bay Area, Riverside-San Bernardino Area, San Diego metropolitan area, Sacramento metropolitan area
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Los Angeles Metropolitan Area, San Francisco Bay Area, Riverside-San Bernardino Area, San Diego metropolitan area, Sacramento metropolitan area