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, or c without using any additional words.
Options:
a CN(Cc1ccc(F)cc1)C(=O)c1cccc(OC2CCN(C3CCCC3)CC2)c1
b O=c1c2ccccc2nnn1CSc1nnc(-c2cccnc2)n1-c1ccccc1F
c Cc1ccc(N2C(=O)N3[C@H]4c5ccccc5OC[C@@H]4[C@@H](c4ccccc4)[C@@]3(C)C2=O)cc1
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}