39530
The Yolo County vote grows out of the economic wreckage left behind by Enron , which was one of the PG&E Corporation 's biggest trading partners at the height of the California energy crisis in 2000 .
 location contains: California, Yolo County
Given options, please tell me the relationships of all the listed entity pairs.Output format is "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} 
 Entity Pairs:  California, Yolo County 
Answer:
 location contains: California, Yolo County