22010
Senator Charles E. Grassley , Republican of Iowa , said he was open to '' any question on any subject '' at the start of his town hall meeting here , and for more than an hour , the good citizens of Ida Grove kept them coming .
 location contains: Iowa, Ida Grove
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:  Iowa, Ida Grove 
Answer:
 location contains: Iowa, Ida Grove