[{"from": "human", "value": "Write solar cell fill factor of given SMILES as a p-type polymer and PC71BM or PCBM. ->  CC1=CC2=C(C(C3=CC=C(CC(CCCC)CCCCCC)S3)=C(C=C(C4=CC=C(C)C5=NSN=C54)S6)C6=C2C7=CC=C(CC(CCCCCC)CCCC)S7)S1\n"}, {"from": "gpt", "value": " 0.38\n"}]