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 or b without using any other words.
Options:
a) c1ccc(-c2[nH]c3ccccc3c2[C@H]2CCC[NH2+]C2)cc1
b) N[C@@H](C(=O)O)[C@@H](N)C(=O)O
Answer: a
Task: Please answer the multiple choice question.
Question: Which molecules are {herg_blocker#not &NULL}a {herg_blocker__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_blocker%}
Answer: {%multiple_choice_result}
2-phenyl-3-[(3R)-piperidin-1-ium-3-yl]-1H-indole