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After tests conducted last week yielded ambiguous results about whether the 12-year-old cow was infected with the brain-wasting disease , tissue samples from the animal were retested by the department 's laboratory in Ames , Iowa , and by experts at the Central Reference Laboratory for mad cow disease in Weybridge , England .
 location contains: Iowa, Ames
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, Ames 
Answer:
 location contains: Iowa, Ames