11999
2 - Amino - 1 - methyl - 6 - phenylimidazo [ 4 , 5 - b ] pyridine ( PhIP ) is one of the most abundant heterocyclic amines ( HCAs ) generated from overcooking meat at high temperatures .
 Chemical: 2 - Amino - 1 - methyl - 6 - phenylimidazo [ 4 , 5 - b ] pyridine; Chemical: PhIP; Chemical: heterocyclic amines; Chemical: HCAs
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 - Amino - 1 - methyl - 6 - phenylimidazo [ 4 , 5 - b ] pyridine; Chemical: PhIP; Chemical: heterocyclic amines; Chemical: HCAs