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In 2011 , this compound , a psychoactive derivative of 2 - aminoindane , was identified in recreational products sold in the United Kingdom .
 Chemical: 2 - aminoindane
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: 2 - aminoindane