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 additional words.
Options:
(a) O=C(c1cccc(S(=O)(=O)N2CCOCC2)c1)N1CCN(c2ccccc2)CC1
(b) Cc1nc(Cc2nnc(SCC(=O)N3CCN(c4ccc(F)cc4)CC3)o2)cs1
Answer: a
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}