Task: Please answer the multiple choice question.
Question: Which molecules are a human ether-à-go-go related gene (hERG) blocking compound (<10uM)?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
a. CC(=O)NC[C@@H]1OC(=O)N2c3ccc(-c4ccc(C#N)nc4)cc3OC[C@H]12
b. CN1CC[C@H](N(C)C(=O)N2CC(c3cc(F)ccc3F)=C[C@@]2(CO)c2ccccc2)[C@@H](F)C1
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-[[(3S,3aR)-7-(6-cyanopyridin-3-yl)-1-oxo-3a,4-dihydro-3H-[1,3]oxazolo[4,3-c][1,4]benzoxazin-3-yl]methyl]acetamide