[{"from": "human", "value": "Given SMILES, write its solar cell average value of power conversion efficiency as a p-type polymer and PC71BM or PCBM. ->  CC1=CC=C(C2=C(C3=CC=C(C[C@H](CCCC)CC)S3)C=C(C4=CC(C5=CC=C(CC(CCCC)CC)S5)=C(C)S4)S2)C6=NSN=C16\n"}, {"from": "gpt", "value": " 1.39\n"}]