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. Cc1cccc(C)c1NC(=O)[C@H]1CCCC[NH+]1CC1CC1
b. CC(C)(O)C#Cc1cnc(Nc2cnc(C#N)cn2)cc1NC[C@@H]1CNCCO1
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}
5-[[5-(3-hydroxy-3-methylbut-1-ynyl)-4-[[(2S)-morpholin-2-yl]methylamino]pyridin-2-yl]amino]pyrazine-2-carbonitrile