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. COc1ccc(CCN2C(=O)N(NS(=O)(=O)CF)C[C@@H]2c2ccc(OC)cc2)cc1
b. CCN[C@H]1CCC[C@@H](c2c[nH]c3ccc(N=C(N)c4cccs4)cc23)C1
Answer: a, 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}
1-fluoro-N-[(4S)-4-(4-methoxyphenyl)-3-[2-(4-methoxyphenyl)ethyl]-2-oxoimidazolidin-1-yl]methanesulfonamide