[{"from": "human", "value": "Given SMILES, write its solar cell PCE as a p-type polymer and PC71BM or PCBM. ->  CC1=CC2=C(C(SC(C)=C3)=C3C(C4=C5C=C(CC(CCCCCCCC)CCCCCC)S4)=C2C6=C5C=C(CC(CCCCCC)CCCCCCCC)S6)S1\n"}, {"from": "gpt", "value": " 2.03\n"}]