[{"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=CC=C(/C(C#N)=C/C2=CC=C(C3=CC=C4C(C=CC(C)=C4OCCCCCCCCCC)=C3OCCCCCCCCCC)S2)S1\n"}, {"from": "gpt", "value": " 3.4\n"}]