27541
During his visit to the Taji air base , Mr. Cheney was told by Lt. Gen. Martin E. Dempsey , who is leading the efforts by the United States to train Iraqi troops , '' When people say , ` When will Iraq take control of its own security ? '
 location contains: Iraq, Taji
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:  Iraq, Taji 
Answer:
 location contains: Iraq, Taji