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 or b without using any additional words.
Options:
(a) O=C(O[C@@H]1CN2CCC1CC2)N1CCc2ccccc2[C@@H]1c1ccccc1
(b) CCOc1cc(N)c(Cl)cc1C(=O)NC[C@@H]1C[NH+](Cc2ccc(F)cc2)CCO1
Answer: a, b
Task: Please answer the multiple choice question.
Question: Which molecules are {herg_blocker#not &NULL}a {herg_blocker__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_blocker%}
Answer: {%multiple_choice_result}