Task: Please answer the multiple choice question.
Question: Which molecules are not a hERG blocker (<10uM)?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
a. O=C(NC1CCN(Cc2ccn(-c3ccc(C(F)(F)F)cc3)c2)CC1)N1CCC(c2ccccc2O)CC1
b. NC(=O)Nc1sc(-c2ccccc2)cc1C(=O)NC1CCCNC1
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}
2-(carbamoylamino)-5-phenyl-N-piperidin-3-ylthiophene-3-carboxamide