10266
 On average , Los Angeles and Cook County , Ill. , which includes Chicago , each lost more than 94,000 domestic migrants annually since 2000 , the most of any counties . 
 location contains: Cook County, Chicago
Given a phrase that describes the relationship between two words, extract the words and the lexical relationship between them. The output format should be "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} 
Answer:
 location contains: Cook County, Chicago