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 or b without using any additional words.
Options:
a) CCN1CCN(c2oc(COc3ccc(-c4ccccc4)cc3)nc2C#N)CC1
b) COc1cc(/C=C2\SC(=S)N(CC(=O)O)C2=O)ccc1OC(=O)c1ccco1
Answer: a
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}