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, or c without using any additional words.
Options:
a. O=C(c1ccco1)N1CCN(C(c2ccccc2F)c2nnnn2Cc2cccs2)CC1
b. N#CCc1ccc(NC(=O)c2ccc(S(=O)(=O)N3CCCC3)cc2)cc1
c. COC(=O)c1nc2nc(C)cc(=O)n2[nH]1
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}