6952
We explore the interactions between a fluorescein ( FAM ) - labeled single - stranded DNA ( P ) , graphene oxide ( GO ) , and a cationic conjugated polymer , poly [ ( 9 , 9 - bis ( 6 ' - N , N , N - trimethylammonium ) hexyl ) - fluorenylene phenylene dibromide ] ( PFP ) .
 Chemical: fluorescein; Chemical: FAM; Chemical: graphene oxide; Chemical: poly [ ( 9 , 9 - bis ( 6 ' - N , N , N - trimethylammonium ) hexyl ) - fluorenylene phenylene dibromide ]; Chemical: PFP
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: fluorescein; Chemical: FAM; Chemical: graphene oxide; Chemical: poly [ ( 9 , 9 - bis ( 6 ' - N , N , N - trimethylammonium ) hexyl ) - fluorenylene phenylene dibromide ]; Chemical: PFP