19217
 The host of the event , Prime Minister Recep Tayyip Erdogan of Turkey , emphasized the symbolic importance of holding it in Istanbul , which bridges East and West and is the leading city in a predominantly Muslim country taking steps to join the European Union . 
 location contains: Turkey, Istanbul
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: Turkey, Istanbul