25129
 Wilson Sonsini , based in Palo Alto , represents , or at least represented , at least half the Silicon Valley technology companies implicated in the backdated-options scandal , according to The Recorder , a law publication in San Francisco . 
 Silicon Valley, Palo Alto
Please list all entity pairs containing a certain relationship in the given options.Output format is "word1, word2; word3, word4". 
Option: nationality, country capital, place of death, children, location contains, place of birth, place lived, administrative division of country, country of administrative divisions, company, neighborhood of, company founders 
Text: {0} 
Answer:
 Silicon Valley, Palo Alto