17089
This paper describes a gas chromatography - mass spectrometric method of l - hydroxypyrene ( 1 - HOP ) and 2 - naphthol ( 2 - NAP ) in fish and shellfish .
 Chemical: l - hydroxypyrene; Chemical: 1 - HOP; Chemical: 2 - naphthol; Chemical: 2 - NAP
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: l - hydroxypyrene, 1 - HOP, 2 - naphthol, 2 - NAP 
Answer:
 Chemical: l - hydroxypyrene; Chemical: 1 - HOP; Chemical: 2 - naphthol; Chemical: 2 - NAP