Task: Please answer the multiple choice question.
Question: Which molecules are a hERG blocking compound (IC50 less than 10uM)?
Constraint: You must select none, one or more options from a, b, c, or d without using any additional words.
Options:
a. O=C(CSc1nnc(-c2ccco2)n1-c1ccccc1)NCc1ccco1
b. COc1ccc(NC(=O)CN(C)C(=O)c2oc3ccccc3c2C)cc1
c. Nc1cccc(-c2cc3ccccc3oc2=O)c1
d. COc1ccc(S(=O)(=O)NNc2nc(C)cc(C)n2)cc1Br
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}