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) CCN(CC)CCCNC(=S)N(Cc1cccnc1)Cc1cc2cccc(C)c2[nH]c1=O
b) CCOc1ccc(NC(=O)C(C)Oc2ccc(C#N)cc2)cc1S(=O)(=O)N1CCCC1
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}