21846
Lured by deregulation of the electricity industry in Texas , the investors acquired the electricity company Texas Genco , which owns several power plants in the Houston area , just last year with $ 900 million in cash .
 Texas, Houston
Please list all entity pairs containing a certain relationship in the given options.Output format is "word1, word2; 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:
 Texas, Houston