16721
 The Cheyenne and Arapaho already operate two casinos in Oklahoma , but they are small and in rural areas more than 10 miles from a major highway , so their profits come to only $ 7 million a year , tribal leaders say . 
 location contains: Oklahoma, Arapaho
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:  Oklahoma, Arapaho 
Answer:
 location contains: Oklahoma, Arapaho