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 additional words.
Options:
a. COc1ccc2ncc(F)c([C@H]3OC(=O)O[C@@H]3C34CCC(NCc5ccc6c(n5)NC(=O)CO6)(CC3)CO4)c2n1
b. OCCOCCN1CCN([C@H](c2ccccc2)c2ccc(Cl)cc2)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}
2-[2-[4-[(R)-(4-chlorophenyl)-phenylmethyl]piperazin-1-yl]ethoxy]ethanol