Task: Please answer the multiple choice question.
Question: Which molecules are not a hERG blocking compound?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
a: O=C(NCc1ccccn1)C(=O)NCC(c1ccco1)N1CCN(c2ccc(F)cc2)CC1
b: Cc1ccc2sc(N3CCN(CCNC(=O)c4ccco4)CC3)nc2c1C.Cl
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}