Task: Please answer the multiple choice question.
Question: Which molecules are not a hERG blocking compound (IC50 < 10uM)?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
a. O=C(c1cn(-c2ccccc2)nc1-c1cccnc1)N1CCN(S(=O)(=O)c2ccccc2F)CC1
b. O=C(c1ccc(CS(=O)(=O)c2ccc(Br)cc2)o1)N1CCC2(CC1)OCCO2
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}