[{"from": "human", "value": "Write solar cell average value of PCE of given SMILES as a p-type polymer and PC71BM or PCBM. ->  CC1=CC(C(C(CC(CCCCCCCC)CCCCCCCCCC)=CC2=C3C=C(C4=CC=C(C5=C(F)C(F)=C(C6=CC=C(C)S6)C7=NSN=C75)S4)S2)=C3C(CC(CCCCCCCCCC)CCCCCCCC)=C8)=C8S1\n"}, {"from": "gpt", "value": " 7.23\n"}]