Task: Please answer the multiple choice question.
Question: Which molecules are not a human ether-à-go-go related gene (hERG) blocking compound?
Constraint: You must select none, one or more options from a, b, or c without using any other words.
Options:
[a] CC(C)(C)NC[C@H](O)c1cc(Cl)c(N)c(Cl)c1
[b] O=C(NC1CCN(Cc2ccc3c(c2)OCO3)CC1)c1cc(=O)c2cc(Cl)c(Cl)cc2o1
[c] CCCS(=O)CCC[NH+](CC)C[C@@H](O)COc1ccc(C#N)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}