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] CCC(=O)N1CCN(c2ccc(NC(=O)c3cc4ccccc4o3)cc2Cl)CC1
[b] COC(=O)c1cc(CNC(=O)c2ccccc2Cl)ccc1OC
[c] Cc1ccc(NC(=O)c2ccccc2OCc2c(C)noc2C)cc1S(=O)(=O)N(C)C
[d] CC1=NN(c2ccccc2)C(=O)/C1=C\C=C\c1ccccc1
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}