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However , the IUPAC recommends using name " alkene " only for acyclic hydrocarbons with just one double bond ; " alkadiene " , " alkatriene " , etc. , or " polyene " for acyclic hydrocarbons with two or more double bonds ; " cycloalkene " , " cycloakadiene " , etc .
 organization: IUPAC
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
 Entities: IUPAC 
Answer:
 organization: IUPAC