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. C[S+]([O-])c1ccc(-c2cnc3ccc(-c4cccc(S(=O)(=O)C5CC5)c4)nn23)cc1
b. CCOc1ccc(Cc2cc(C3CCN(C[C@H]4CN([C@@H](C(=O)O)[C@@H](C)CC)C[C@@H]4c4cccc(F)c4)CC3)n(CC)n2)cc1
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}
[4-[6-(3-cyclopropylsulfonylphenyl)imidazo[1,2-b]pyridazin-3-yl]phenyl]-methyl-oxidosulfanium