Task: Please answer the multiple choice question.
Question: Which molecules are a hERG blocking compound?
Constraint: You must select none, one or more options from a, b, c, or d without using any additional words.
Options:
a O=C(Cc1ccc(F)cc1)Nc1nc(-c2ccc(F)cc2)cs1
b COc1ccc(-c2[nH]ncc2/C=N/NC(=O)c2cccc([N+](=O)[O-])c2)cc1OC
c O=C(Nc1ccccc1Br)c1cc[n+]([O-])cc1
d Cc1oc(S(=O)(=O)N2CCOCC2)cc1C(=O)Nc1ccc(Cl)cc1
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}