[{"from": "human", "value": "Given SMILES, write its solar cell average value of PCE as a p-type polymer and PC71BM or PCBM. ->  CC1=CC=C(C2=C(OCC(CCCC)CC)C=C(C3=CC=C(C4=C(CCCCCC)C=C(C(N(CC(CC)CCCC)C5=O)=C6C5=C(C7=CC(CCCCCC)=C(C)S7)N(CC(CC)CCCC)C6=O)S4)S3)C(OCC(CC)CCCC)=C2)S1\n"}, {"from": "gpt", "value": " 3.51\n"}]