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, b, c, or d without using any other words.
Options:
a CC1CCCCN1C(=O)C1CCN(S(=O)(=O)c2ccc(-n3cnnn3)cc2)CC1
b Cc1cc(C)n2c(nc3ccccc32)c1C(=O)NCc1ccccc1
c Cc1ccc(CNC(=O)c2ccccc2-n2cnnn2)cc1
d COc1ccccc1CN1CCNC(=O)C1CC(=O)NCCc1cnccn1
Answer: a
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}