Task: Please answer the multiple choice question.
Question: Which molecules are a hERG blocking compound (IC50 < 10uM)?
Constraint: You must select none, one or more options from a, b, or c without using any other words.
Options:
a: O=c1c2ccccc2cc(-c2ccsc2)n1CCCCO
b: Cc1nc(N2CCN(Cc3nc4ccccc4[nH]3)CC2)c2oc3ccccc3c2n1
c: CCN1C(=O)c2cccc3c(S(=O)(=O)NCc4ccco4)ccc1c23
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}