Task: Please answer the multiple choice question.
Question: Which molecules are not a human ether-à-go-go related gene (hERG) blocker?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
a. CCN(CC)C(=O)CSc1nnc(C2CCCCC2)o1
b. CCO[C@H]1OC(C(=O)NCc2nc3ccccc3[nH]2)=C[C@@H](c2ccc(Br)cc2)[C@@H]1CCCO
Answer: a, 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}