[{"from": "human", "value": "What is solar cell power conversion efficiency of given SMILES as a p-type polymer and PC71BM or PCBM? ->  CC1=CC2=C(C(C3=CC=C(SCC(CCCC)CC)S3)=C(C=C(C4=CC=C(C5=C6C(C(N5CC(CC)CCCC)=O)=C(C7=CC=C(C)S7)N(CC(CCCC)CC)C6=O)S4)S8)C8=C2C9=CC=C(SCC(CCCC)CC)S9)S1\n"}, {"from": "gpt", "value": " 2.41\n"}]