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. CCCCCCNC(=O)N1C/C=C\C(c2ccc(OC)cc2)N(Cc2ccc(F)cc2)C(=O)C1
b. Cc1cc(=O)oc(C)c1C(=O)OCc1ccc([N+](=O)[O-])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}