23796
In addition , major metabolites were identified and measurements of OH - PAHs ( 1 - naphthol , 9 - phenantrol , 9 - fluorenol , 1 - pyrenol , 1OH - BaP and 3OH - BaP ) and alkylphenols ( 4 - n - nonylphenol ( 4 - n - NP ) and 4 - tertoctylphenol ( 4 - tert - OP ) ) in the same fish bile extracts were taken by gas chromatography - mass spectrometry in electron ionization mode ( GC - EI - MS ) .
 Chemical: OH - PAHs; Chemical: 1 - naphthol; Chemical: 9 - phenantrol; Chemical: 9 - fluorenol; Chemical: 1 - pyrenol; Chemical: 1OH - BaP; Chemical: 3OH - BaP; Chemical: alkylphenols; Chemical: 4 - n - nonylphenol; Chemical: 4 - n - NP; Chemical: 4 - tertoctylphenol; Chemical: 4 - tert - OP
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: OH - PAHs; Chemical: 1 - naphthol; Chemical: 9 - phenantrol; Chemical: 9 - fluorenol; Chemical: 1 - pyrenol; Chemical: 1OH - BaP; Chemical: 3OH - BaP; Chemical: alkylphenols; Chemical: 4 - n - nonylphenol; Chemical: 4 - n - NP; Chemical: 4 - tertoctylphenol; Chemical: 4 - tert - OP