Task: Please answer the multiple choice question.
Question: Which molecules are a hERG blocking compound?
Constraint: You must select none, one or more options from a, b, c, or d without using any other words.
Options:
a. CCCCCCn1c(CN2CCN(C(=O)OCC)CC2)nc2c1c(=O)n(C)c(=O)n2C
b. Cc1ccc(OCCC(=O)Nc2ccccc2C(=O)N2CCCCC2)cc1
c. CCOc1ccc(CCNc2nc3ccccc3n3cnnc23)cc1OCC
d. COc1ccc(NC(=O)CCN2CCN(S(=O)(=O)c3cc(Cl)ccc3OC)CC2)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}