Task: Please answer the multiple choice question.
Question: Which molecules are not a human ether-à-go-go related gene (hERG) blocker?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
a) CCCCNC(=S)N(CCCO)Cc1cc2cc3c(cc2[nH]c1=O)OCCO3
b) O=C1OC(N2C(=O)CC[C@H]2C(=O)Nc2ccc(F)c(F)c2)c2ccccc21
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}