[{"from": "human", "value": "Given SMILES, write its solar cell power conversion efficiency as a p-type polymer and PC71BM or PCBM. ->  CC(S1)=CC2=C1C(C3=CC=C(CC(CCCC)CC)S3)=C(C=C(C4=CC=C(C5=C(F)C(F)=C(C6=CC=C(C)S6)C7=C5N=C(C8=CC(OCCCCCCCC)=CC=C8)C(C9=CC(OCCCCCCCC)=CC=C9)=N7)S4)S%10)C%10=C2C%11=CC=C(CC(CC)CCCC)S%11\n"}, {"from": "gpt", "value": " 6.32\n"}]