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Eight months ago , these parents turned to marijuana to keep their 3 - year-old son alive . http://t.co/RLOwnmgR90 http://t.co/XpIRcIJUfW
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Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
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