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 additional words.
Options:
a. COc1cc2nc(-c3ccc(N4CCN(C)CC4)cc3)nc(NCCN3CCOCC3)c2cc1OC
b. CC(CN(C)C)CN1c2ccccc2[S+]([O-])c2ccc(C#N)cc21
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}
6,7-dimethoxy-2-[4-(4-methylpiperazin-1-yl)phenyl]-N-(2-morpholin-4-ylethyl)quinazolin-4-amine