[{"from": "human", "value": "What is solar cell fill factor of given SMILES as a p-type polymer and PC71BM or PCBM? ->  CC1=CC2=C(C(OC(CCCCC)CCCCC)=C(C=C(C3=CC=C(C)C4=NON=C43)S5)C5=C2OC(CCCCC)CCCCC)S1\n"}, {"from": "gpt", "value": " 0.508\n"}]