Task: Please answer the multiple choice question.
Question: Which molecules are a hERG blocking compound?
Constraint: You must select none, one or more options from a, b, c, or d without using any other words.
Options:
(a) O=S(=O)(Nc1ccc(-c2cnco2)cc1)c1ccccc1
(b) Cc1ccc(NC(=O)Nc2c(C)n(C)n(-c3ccccc3)c2=O)cc1
(c) O=C(COC(=O)c1ccc(O)cc1)Nc1cccc(S(=O)(=O)N2CCCCC2)c1
(d) O=C(NCc1cccs1)c1cc(-c2ccccc2)nn1CC1CC(c2cccc([N+](=O)[O-])c2)=NO1
Answer: d
Task: Please answer the multiple choice question.
Question: Which molecules are {herg_inhib#not &NULL}a {herg_inhib__names__noun}?
Constraint: You must select none, one or more options from {%multiple_choice_enum%2-5%aA1} without using any {#other|additional!} words.
Options:
{SMILES%herg_inhib%}
Answer: {%multiple_choice_result}