Task: Please answer the multiple choice question.
Question: Which molecules are a human ether-à-go-go related gene (hERG) blocking compound?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
[a] OCCC1CN(Cc2ccccc2-c2ccco2)CCN1C1CCCC1
[b] CCN(CC(=O)Nc1ccc(OC)cc1)C(=O)c1cc(S(=O)(=O)N(C)C)ccc1N1CCCC1
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}