Task: Please answer the multiple choice question.
Question: Which molecules are a human ether-à-go-go related gene (hERG) blocking compound?
Constraint: You must select none, one or more options from a, b, c, d, or e without using any additional words.
Options:
a CC1CC(C)CN(C/C=C/c2ccccc2[N+](=O)[O-])C1
b CCOc1ccc2nc(SCC(=O)Nc3ccc4c(c3)OCCO4)[nH]c2c1
c CCOC(=O)c1cccc(NC(=O)CCS(=O)(=O)c2ccc(Br)s2)c1
d CCOc1ccc(S(=O)(=O)Nc2ccc(C(=O)N/N=C(\C)c3ccc(-n4ccnc4)cc3)cc2)cc1
e C[C@H](NC(=O)OC(C)(C)C)c1nnc(SCC(=O)c2ccc(Cl)cc2)o1
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}