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, b, or c without using any other words.
Options:
(a) O=C(NCC1(c2ccccc2)CCCC1)c1ccccc1
(b) CN(C)CCCN(C(=O)c1ccc2c(c1)CCCC2)c1nc2c(F)cccc2s1.Cl
(c) CCc1ccc(C(C(=O)NCc2ccccc2)N(C(=O)c2csnn2)C2CC2)cc1
Answer: b
Task: Please answer the multiple choice question.
Question: Which molecules are {herg_inhib#not &NULL}a {herg_inhib__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_inhib%}
Answer: {%multiple_choice_result}