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) COc1nccnc1NS(=O)(=O)c1ccc(NC(=S)NC(=O)c2ccc(F)c(F)c2)cc1
(b) CCOc1ccc(N2CC(C(=O)Nc3nnc(CC)s3)CC2=O)cc1
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}