Task: Please answer the multiple choice question.
Question: Which molecules are not a hERG blocking compound?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
a.) CC(=O)Nc1ccc(SC[C@H](CC(C)C)N2CCN(CCc3ccccc3)CCC2=O)cc1
b.) CS(=O)(=O)N(Cc1ccccc1Cl)c1ccc(C(=O)NCc2ccccn2)cc1
Answer: b
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}