3391
As a lawmaker , Pearce has n't just embraced the issue of illegal immigration as a tactic ; for him it 's a passion -- his opponents say an obsession -- '' the root cause '' of almost any other problem Arizona and the nation face .
 location contains: Arizona, Pearce
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:  Arizona, Pearce 
Answer:
 location contains: Arizona, Pearce