4778
Because Pakistan 's intelligence services are fickle -- sometimes supporting the Taliban , sometimes arresting its members -- I had to meet Nurzai at night , down a dark lane in a village outside Quetta .
 location contains: Pakistan, Quetta
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:  Pakistan, Quetta 
Answer:
 location contains: Pakistan, Quetta