18863
Human cytochrome P450 ( P450 ) 2A13 was found to interact with several polycyclic aromatic hydrocarbons ( PAHs ) to produce Type I binding spectra , including acenaphthene , acenaphthylene , benzo [ c ] phenanthrene , fluoranthene , fluoranthene - 2 , 3 - diol , and 1 - nitropyrene .
 Chemical: polycyclic aromatic hydrocarbons; Chemical: PAHs; Chemical: acenaphthene; Chemical: acenaphthylene; Chemical: benzo [ c ] phenanthrene; Chemical: fluoranthene; Chemical: fluoranthene - 2 , 3 - diol; Chemical: 1 - nitropyrene
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: polycyclic aromatic hydrocarbons; Chemical: PAHs; Chemical: acenaphthene; Chemical: acenaphthylene; Chemical: benzo [ c ] phenanthrene; Chemical: fluoranthene; Chemical: fluoranthene - 2 , 3 - diol; Chemical: 1 - nitropyrene