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, or d without using any other words.
Options:
a) O=C(Nc1cccc(S(=O)(=O)N2CCCCC2)c1)c1cc([N+](=O)[O-])ccc1N1CCOCC1
b) COC(=O)c1cn(NC(=O)Cc2ccccc2OC)c(=O)c2ccccc12
c) C[C@@H]1CC2OC(=O)[C@@]3(C)C(=O)CC[C@@](C)(C23)[C@@]1(O)CCc1ccoc1
d) CC(C)CCNC(=O)NC(=O)CSc1ncccn1
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}