18626
 Frank E. Gutierrez , the emergency management coordinator for Harris County , which covers Houston , said that Joe Leonard , the area commander for the Department of Homeland Security , had made it a goal to clear the shelter complex by Sept. 18 . '' 
 location contains: Harris County, Houston
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:  Harris County, Houston 
Answer:
 location contains: Harris County, Houston