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The arrests of at least six people outside the Poospatuck Reservation in Mastic this month were part of a new investigation after reports of the illegal sale of large quantities of untaxed cigarettes at the Poospatuck and Shinnecock Reservations , a Suffolk County assistant district attorney said Wednesday .
 location contains: Suffolk County, Poospatuck Reservation
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:  Suffolk County, Poospatuck Reservation 
Answer:
 location contains: Suffolk County, Poospatuck Reservation