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 other words.
Options:
a: CN1CCC(N(C)C(=O)N2CC(c3cc(F)ccc3F)=C[C@@]2(CO)c2ccccc2)CC1
b: COCCN(C)C(c1ccccc1)C(O)(c1cccnc1)c1cccnc1
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}
(5S)-3-(2,5-difluorophenyl)-5-(hydroxymethyl)-N-methyl-N-(1-methylpiperidin-4-yl)-5-phenyl-2H-pyrrole-1-carboxamide