23765
A diketopyrrolopyrrole ( DPP ) with fluorenone ( FN ) based low band gap alternating copolymer ( PDPPT - alt - FN ) has been synthesized via Suzuki coupling .
 Chemical: diketopyrrolopyrrole; Chemical: DPP; Chemical: fluorenone; Chemical: PDPPT - alt - FN
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: diketopyrrolopyrrole; Chemical: DPP; Chemical: fluorenone; Chemical: PDPPT - alt - FN