Task: Please answer the multiple choice question.
Question: Which molecules are a hERG blocking compound (<10uM)?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
a. CC(C)(C)NC(=O)c1c[nH]c2ncc(-c3ncn4c3CCCC4)nc12
b. NS(=O)(=O)c1ccc(Oc2cnc3ccc(=O)n(CCN4CCC(c5nc6cc(C(F)(F)F)ccc6[nH]5)CC4)c3c2)cc1
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-tert-butyl-2-(5,6,7,8-tetrahydroimidazo[1,5-a]pyridin-1-yl)-5H-pyrrolo[2,3-b]pyrazine-7-carboxamide