[{"from": "human", "value": "Given SMILES, write its band gap at normal measurement conditions.. ->  CC1=CC(C(C#CC2=CC=C(CCCCCCCCCC)C=C2)=C(SC(C)=C3)C3=C4C#CC5=CC=C(CCCCCCCCCC)C=C5)=C4S1\n"}, {"from": "gpt", "value": " 3\n"}]