Task: Please answer the multiple choice question.
Question: Which molecules are a hERG blocker (<10uM)?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
(a) N#Cc1ccc(OCCN2CC3CN(CCNS(=O)(=O)c4ccc5c(c4)CCO5)CC(C2)O3)cc1
(b) O=C(NC(c1ccc(Cl)cc1)c1ccnc(F)c1)[C@@H]1CC[C@@H](N2CCOCC2)C[C@H]1c1ccc(Br)cc1
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}
(1R,2R,4R)-2-(4-bromophenyl)-N-[(4-chlorophenyl)-(2-fluoropyridin-4-yl)methyl]-4-morpholin-4-ylcyclohexane-1-carboxamide