Task: Please answer the multiple choice question.
Question: Which molecules are a human ether-à-go-go related gene (hERG) blocker?
Constraint: You must select none, one or more options from a, b, c, or d without using any other words.
Options:
a: CSCc1ccc(C(=O)N2CCC(CCC(=O)N(C)Cc3ccccc3)CC2)o1
b: CCc1nc(Nc2ccccc2)c2oc3ccccc3c2n1.Cl
c: CN1CCN(S(=O)(=O)c2ccc(Cl)s2)CC1
d: COc1ccc(CCNC(=O)C2CCN(C(=O)c3ccc(C(C)(C)C)cc3)CC2)cc1OC
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}