Task: Please answer the multiple choice question.
Question: Which molecules are not a human ether-à-go-go related gene (hERG) blocker (<10uM)?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
(a) O=C(O)c1cccc(Cc2cc(Cl)ccc2OCc2ccc(Cl)cc2F)n1
(b) Cc1ncoc1-c1nnc(SCCCN2CC3CCN(c4ccc(C(F)(F)F)cc4)C3C2)n1C
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}
6-[[5-chloro-2-[(4-chloro-2-fluorophenyl)methoxy]phenyl]methyl]pyridine-2-carboxylic acid