193335
The contagion heuristic is a psychological heuristic leading people to avoid contact with people or objects viewed as " contaminated " by previous contact with someone or something viewed as bad — or , less often , to seek contact with objects that have been in contact with people or things considered good .
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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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