[{"from": "human", "value": "What is solar cell average value of PCE of given SMILES as a p-type polymer and PC71BM or PCBM? ->  CC1=C(CC(CCCCCCCC)CCCCCCCCCC)C=C(C2=C(F)C(F)=C(C3=CC(CC(CCCCCCCCCC)CCCCCCCC)=C(C4=CC=C(C5=C(F)C(F)=C(C6=CC=C(C)S6)C(F)=C5F)S4)S3)C7=NSN=C72)S1\n"}, {"from": "gpt", "value": " 3.49\n"}]