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. Cc1nccn1-c1cc(N2CCC(CCNS(N)(=O)=O)CC2)ncn1
b. COc1ccc(CC[NH2+]CCC[C@@](C#N)(c2ccc(OC)c(OC)c2)C(C)C)cc1OC
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}
4-(2-methylimidazol-1-yl)-6-[4-[2-(sulfamoylamino)ethyl]piperidin-1-yl]pyrimidine