[{"from": "human", "value": "Given SMILES, write its solar cell solar cell average value of power conversion efficiency as a p-type polymer and PC71BM or PCBM. ->  CC1=C(C(F)=C(C(OCC(CC)CCCC)=O)S2)C2=C(C3=CC4=C(C(C5=CC=C(CC(CC)CCCC)S5)=C(C=C(C6=C7C(C(F)=C(C(OCC(CCCC)CC)=O)S7)=C(C8=CC9=C(C(C%10=CC=C(CC(CCCC)CC)S%10)=C(C=C(C)S%11)C%11=C9C%12=CC=C(CC(CCCC)CC)S%12)S8)S6)S%13)C%13=C4C%14=CC=C(CC(CC)CCCC)S%14)S3)S1\n"}, {"from": "gpt", "value": " 0.78\n"}]