4997
Israel is reluctant to pull back its troops from Palestinian areas in the West Bank because it says the Palestinian security forces have not proved that they can prevent attacks or that they are willing to try .
 location contains: Israel, West Bank
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:  Israel, West Bank 
Answer:
 location contains: Israel, West Bank