Task: Please answer the multiple choice question.
Question: Which molecules are a hERG blocker (<10uM)?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
a: NCCCCCCNS(=O)(=O)c1cccc2c(Cl)cccc12
b: Cc1nc(C(=O)NCCN2CCN(c3cccc(Cl)c3Cl)CC2)c(C)n1-c1ccccc1
Answer: a
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}
N-(6-aminohexyl)-5-chloronaphthalene-1-sulfonamide