Task: Please answer the multiple choice question.
Question: Which molecules are not a hERG blocker?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
a COc1ccc(NC2CCCN(C(=O)c3csc(C(C)C)n3)C2)cc1
b CCc1cc(=O)oc2cc(C)cc(OCC(=O)NC(Cc3c[nH]c4ccc(O)cc34)C(=O)O)c12
Answer: a, 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}