[{"from": "human", "value": "Write solar cell maximum value of PCE of given SMILES 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(OCC(CCCC)CC)C(SC(C)=C5)=C5C(OCC(CCCC)CC)=C4S3)S1\n"}, {"from": "gpt", "value": " 7.4\n"}]