10567
In this context , it has been postulated that the uptake of toxic substances formed during meat and fish processing such as heterocyclic aromatic amines ( HCAs ) may be causally related to colon carcinogenesis .
 Chemical: heterocyclic aromatic 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: heterocyclic aromatic amines; Chemical: HCAs