Task: Please answer the multiple choice question.
Question: Which molecules are a human ether-à-go-go related gene (hERG) blocking compound?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
(a) Fc1ccc(Cn2c(NC3CC[NH2+]CC3)nc3ccccc32)cc1
(b) COc1ccc([C@@H]2CC(=O)c3c(O)cc(O)cc3O2)cc1O
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}
1-[(4-fluorophenyl)methyl]-N-piperidin-1-ium-4-yl-benzimidazol-2-amine