70895
Child prostitution is common in many parts of the world , especially in Southeast Asia ( Thailand , Cambodia ) , and many adults from wealthy countries travel to these regions to engage in child sex tourism .
 Southeast Asia, Thailand, Cambodia, child sex tourism
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
Answer:
 Southeast Asia, Thailand, Cambodia, child sex tourism