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: CC(C)(NCc1cc([C@]2(C)CCSC(N)=N2)c(F)cc1F)C(F)(F)F
b: CCCC(=O)N[C@H]1CCc2cc(CCN3CCN(c4nsc5ccccc45)CC3)ccc21
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}
(4S)-4-[2,4-difluoro-5-[[(1,1,1-trifluoro-2-methylpropan-2-yl)amino]methyl]phenyl]-4-methyl-5,6-dihydro-1,3-thiazin-2-amine