Task: Please answer the multiple choice question.
Question: Which molecules are a human ether-à-go-go related gene (hERG) blocker (<10uM)?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
a. CNCCN1CCCc2cc(NC(=N)c3cccs3)ccc21
b. CCCCc1cc(OC2CCN(CCCS(=O)(=O)C(C)C)CC2)c2ncccc2c1.Cl.Cl
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}
6-butyl-8-[1-(3-propan-2-ylsulfonylpropyl)piperidin-4-yl]oxyquinoline;dihydrochloride