4603
 World oil prices , now just under $ 70 a barrel , have recently displayed strong sensitivity to fluctuating supplies , and Iraq 's northern oil fields , centered on the city of Kirkuk , can produce close to a million barrels a day , according to estimates by the state-owned North Oil Company and the United States Energy Department . 
 location contains: Iraq, Kirkuk
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: Iraq, Kirkuk