[{"from": "human", "value": "What is solar cell average value of power conversion efficiency of given SMILES as a p-type polymer and PC71BM or PCBM? ->  CC1=CC2=C(C(OCC(CCCC)CC)=C(C=C(C3=CC(/C=C/C4=CC=C(C5=CC=C(C6=C7C(C(N6CC(CC)CCCC)=O)=C(C8=CC=CS8)N(CC(CC)CCCC)C7=O)S5)S4)=C(C)S3)S9)C9=C2OCC(CCCC)CC)S1\n"}, {"from": "gpt", "value": " 4.89\n"}]