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Mouth-watering tours are offered by Absolute Asia , with a private 11-day trip for $ 3,700 to $ 4,570 a person , double occupancy , excluding international air fare , (800) 736-8187 , www.absoluteasia.com , and Artisans of Leisure , with a private 16-day food tour of Vietnam , Thailand and Singapore for $ 6,880 a person , double occupancy , without air fare ; (800) 214-8144 ; www.artisansofleisure.com .
 location contains: Asia, Vietnam; location contains: Asia, Singapore; location contains: Asia, Thailand
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:  Asia, Vietnam; Asia, Singapore; Asia, Thailand 
Answer:
 location contains: Asia, Vietnam; location contains: Asia, Singapore; location contains: Asia, Thailand