Task: Please answer the multiple choice question.
Question: Which molecules are a hERG blocker?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
[a] O=C(CN(Cc1ccccc1Cl)C(=O)c1ccc(CN2CCOCC2)o1)NCc1ccccc1
[b] CN(C)CCCN(C(=O)c1ccc2c(c1)CCCC2)c1nc2ccc(F)cc2s1.Cl
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}