Task: Please answer the multiple choice question.
Question: Which molecules are a human ether-à-go-go related gene (hERG) blocking compound (<10uM)?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
(a) Cc1ccnnc1N1CCN(C(=O)Nc2ccc(C(C)(C)C)cc2)[C@H](C)C1
(b) CC(C)N1CCC(Oc2ccc(N3CCN(C(=O)c4ccc(C#N)cc4)CC3=O)cc2)CC1
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}
(2R)-N-(4-tert-butylphenyl)-2-methyl-4-(4-methylpyridazin-3-yl)piperazine-1-carboxamide