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, b, c, or d without using any additional words.
Options:
a.) O=C(NNC(=O)c1ccc(-n2cncn2)c([N+](=O)[O-])c1)c1ccccc1
b.) COc1ccc(OC)c(CN2CCN(Cc3cc(=O)oc4cc(O)ccc34)CC2)c1
c.) O=C(CN1CCOCC1)Nc1ccc(F)cc1
d.) O=C(Nc1ccc(F)c(F)c1)C1CCCN(S(=O)(=O)c2cnc[nH]2)C1
Answer: 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}