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 additional words.
Options:
(a) O=C(c1ccc(-n2cccn2)cc1)N1CCN(c2ncccc2C(F)(F)F)CC1
(b) COc1cccc(CNc2nc3nc(C)cc(C)n3n2)c1
(c) O=C(NCC(c1ccco1)N1CCc2ccccc21)c1cccc(F)c1
(d) CCOc1ccccc1CNC(=O)c1cc2oc3ccccc3c2n1C
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}