[{"from": "human", "value": "What is solar cell FF of given SMILES as a p-type polymer and PC71BM or PCBM? ->  CC1=CC=C(C2=CC=C(C3=CC=C(C4=CC(C(SC[C@H](CCCCCC)CCCC)=C(SC(C)=C5)C5=C6SCC(CCCCCC)CCCC)=C6S4)O3)C7=NN(CC(CCCCCC)CCCC)N=C27)O1\n"}, {"from": "gpt", "value": " 0.5820000000000001\n"}]