Task: Please answer the multiple choice question.
Question: Which molecules are a human ether-à-go-go related gene (hERG) blocker?
Constraint: You must select none, one or more options from a, b, or c without using any additional words.
Options:
a COc1ccc(CN(C)C(=O)Cc2ccc(S(=O)(=O)N3CCOCC3)s2)cc1OC
b CCCC(c1nnnn1Cc1ccc(F)cc1)N1CCN(CC)CC1
c COc1cccc(NC(=O)CN(C)CC(=O)Nc2ccc(Br)cc2)c1
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}