3880
 By the time of his death in 1942 , he had designed more than 1,000 buildings for Ford alone , like most of its giant River Rouge and Willow Run plants in Michigan . 
 location contains: Michigan, River Rouge
Given options, please tell me the relationships of all the listed entity pairs.Output format is "relation1: word1, word2; relation2: word3, word4". 
Option: nationality, country capital, place of death, children, location contains, place of birth, place lived, administrative division of country, country of administrative divisions, company, neighborhood of, company founders 
Text: {0} 
 Entity Pairs:  Michigan, River Rouge 
Answer:
 location contains: Michigan, River Rouge