[{"from": "human", "value": "Write solar cell average value of PCE of given SMILES as a p-type polymer and PC71BM or PCBM. ->  O=C(OCC(CCCCCC)CCCC)C1=CC2=C(C3=CC4=C(C(OCC(CCCCCC)CCCC)=C(C=C(C)S5)C5=C4OCC(CCCCCC)CCCC)S3)SC(C6=C(SC(C(OCC(CCCCCC)CCCC)=O)=C7)C7=C(C)S6)=C2S1\n"}, {"from": "gpt", "value": " 2.04\n"}]