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Chalcones ( 1 , 3 - Diphenyl - 2 - propen - 1 - one ) are constituted by a three carbon alpha , beta - unsaturated carbonyl system .
 Chemical: Chalcones; Chemical: 1 , 3 - Diphenyl - 2 - propen - 1 - one; Chemical: carbon; Chemical: alpha , beta - unsaturated carbonyl
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: Chalcones; Chemical: 1 , 3 - Diphenyl - 2 - propen - 1 - one; Chemical: carbon; Chemical: alpha , beta - unsaturated carbonyl