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. NC1CN(c2ccc(-n3ccc(OCc4ccccc4)cc3=O)cn2)CC1c1cc(F)ccc1F
b. O=C(C1CC(Oc2ccc(F)cc2)CN1)N1CCCN(C2CCC2)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-cyclobutyl-1,4-diazepan-1-yl)-[4-(4-fluorophenoxy)pyrrolidin-2-yl]methanone