Task: Please answer the multiple choice question.
Question: Which molecules are not a hERG blocker?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
a. CCc1ccc(-c2nc(CN3CCC(C(=O)NCCN(CC)c4ccccc4)CC3)c(C)o2)cc1
b. O=C(c1ccccc1F)c1cn(CC(=O)N2CCCCC2)c2ccccc12
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}