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. COC(=O)c1[nH]c2ccc(C)cc2c1NC(=O)CCN1CCN(Cc2ccc3c(c2)OCO3)CC1
b. NC(=O)C1CCN(c2oc(/C=C/c3ccccc3)nc2S(=O)(=O)c2ccccc2)CC1
c. Cc1[nH]n(-c2ccccc2)c(=O)c1C=Nc1ccc2[nH]c(=O)[nH]c2c1
d. COc1cc(NC(=S)N2CCN(S(=O)(=O)c3ccc(C)cc3)CC2)cc(OC)c1
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}