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] O=S(=O)(Nc1ccc([C@]23CNC[C@H]2C3)cc1)c1ccc(OC(F)(F)F)cc1
[b] Cc1cccc(NC(=N)c2ccc(-c3ccc(Cl)cc3)o2)c1.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}
5-(4-chlorophenyl)-N-(3-methylphenyl)furan-2-carboximidamide;hydrochloride