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, b, c, or d without using any additional words.
Options:
a: O=C(O)CCC(O)=C1S(=O)(=O)OCCOS1(=O)=O.[H-].[Na+]
b: CCOC(=O)C1(c2ccccc2)CCN(C)CC1
c: Fc1ccc2c([C@@H]3C[NH2+]CC[C@@H]3F)c(C3=CNC=CC3)[nH]c2c1
d: [N-]=[N+]=NCC(N)=O
Answer: b, c
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}
ethyl1-methyl-4-phenylpiperidine-4-carboxylate