Task: Please answer the multiple choice question.
Question: Which molecules are not 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] CCN(CC)C(=O)c1ccc(C2=CC3(CCNCC3)Oc3ccccc32)cn1
[b] CC(NC(=O)C1(N)CCCN(c2ncnc3[nH]ccc23)C1)c1ccc(Cl)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,N-diethyl-5-spiro[chromene-2,4'-piperidine]-4-ylpyridine-2-carboxamide