Task: Please answer the multiple choice question.
Question: Which molecules are not a hERG blocking compound?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
a. O=[N+]([O-])c1ccc(OCC(O)CNCCNc2nccc(C(F)(F)F)n2)cc1
b. Cn1c(-c2ccsc2)c(-c2cccs2)c2cc(-c3ccc4[nH]ccc4c3)ccc21
Answer: b
Task: Please answer the multiple choice question.
Question: Which molecules are {herg_inhib#not &NULL}a {herg_inhib__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_inhib%}
Answer: {%multiple_choice_result}