6800
 While Mr. Zelikow , in an interview , maintained that he was not leaving his post because of any disgruntlement , one administration official who spoke on condition of anonymity because he was not authorized to discuss the subject publicly noted that Mr. Zelikow had been frustrated with the pace of the administration 's diplomatic efforts on the Middle East , Iran and North Korea . 
 location contains: Middle East, Iran
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: Middle East, Iran