1882
An aide to Mr. Bush recalled how , just before taking the stage at a booming gymnasium in Le Mars , Iowa , the president turned to him and several others and said , '' All right , boys , I have some new chestnuts for 'em tonight , '' adding , '' They ai n't seen nothing yet . ''
 location contains: Iowa, Le Mars
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, Le Mars 
Answer:
 location contains: Iowa, Le Mars