27918
alpha - Naphthoflavone - like and 5 - hydroxyflavone derivatives preferentially inhibited P450 1A2 , while beta - naphthoflavone - like flavone derivatives showed selective inhibition of P450 1A1 .
 Chemical: alpha - Naphthoflavone; Chemical: 5 - hydroxyflavone; Chemical: beta - naphthoflavone; Chemical: flavone
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
 Entities: alpha - Naphthoflavone, 5 - hydroxyflavone, beta - naphthoflavone, flavone 
Answer:
 Chemical: alpha - Naphthoflavone; Chemical: 5 - hydroxyflavone; Chemical: beta - naphthoflavone; Chemical: flavone