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 other words.
Options:
a. CN1CCN(c2cccc3c2C[C@H](NC(=O)c2ccc(OCC(F)(F)F)nc2)CO3)CC1
b. NC(=O)c1c(OCc2c(F)cc(Br)cc2F)nsc1NC(=O)NCCCCN1CCCC1
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}
3-[(4-bromo-2,6-difluorophenyl)methoxy]-5-(4-pyrrolidin-1-ylbutylcarbamoylamino)-1,2-thiazole-4-carboxamide