[{"from": "human", "value": "Given SMILES, write its solar cell average value of power conversion efficiency as a p-type polymer and PC71BM or PCBM. ->  CC1=CC2=C(C(SC(C3=CC=C(C)C4=NSN=C34)=C5)=C5C6=C2C=C(OCC(CCCC)CC)C(OCC(CCCC)CC)=C6)S1\n"}, {"from": "gpt", "value": " 0.62\n"}]