Task: Please answer the multiple choice question.
Question: Which molecules are not 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 O=S(=O)(Nc1ccc(Cl)cn1)c1ccc2c(c1)OCCO2
b O=C(O)C(=O)O.O=[N+]([O-])c1ccc(S(=O)(=O)N(CCCN2CCOCC2)Cc2cccs2)cc1
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}