Task: Please answer the multiple choice question.
Question: Which molecules are 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 COCCNS(=O)(=O)c1ccc(-c2ccc(CCN3CCC[C@H]3C)cc2)cc1
b CCOC(=O)C1=C(CN2CCOCC2)NC(c2nc(CC(=O)O)cs2)=NC1c1ccc(F)cc1Br
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}
N-(2-methoxyethyl)-4-[4-[2-[(2R)-2-methylpyrrolidin-1-yl]ethyl]phenyl]benzenesulfonamide