Task: Please answer the multiple choice question.
Question: Which molecules are 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 additional words.
Options:
(a) CC1CCOC1(c1ccc(-c2cnc(N)cn2)cc1)c1ccc(C(=O)NCC(C)(C)O)nc1
(b) N#Cc1ccc(O[C@@H]2CN[C@@H](C(=O)N3CCCN(C4CCCC4)CC3)C2)cc1
Answer: 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}
4-[(3S,5R)-5-(4-cyclopentyl-1,4-diazepane-1-carbonyl)pyrrolidin-3-yl]oxybenzonitrile