[{"from": "human", "value": "Given SMILES, write its solar cell FF as a p-type polymer and PC71BM or PCBM. ->  CC1=CC=C(C2=C3C(C(N2CC(CCCCCCCC)CCCCCCCCCC)=O)=C(C4=CC=C(C5=CC=C(/C=C/C6=CC=C(C)S6)S5)O4)N(CC(CCCCCCCCCC)CCCCCCCC)C3=O)O1\n"}, {"from": "gpt", "value": " 0.6409999999999999\n"}]