16377
An experimental animal study was therefore designed to indicate if , and if yes to which extent , 2NA from P2NA dephenylation is accessible to the metabolic pathway that is held responsible for the carcinogenicity of 2NA .
 Chemical: 2NA; Chemical: P2NA; Chemical: 2NA
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: 2NA; Chemical: P2NA; Chemical: 2NA