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 other words.
Options:
a: COc1cc2c(cc1OC)CN(CCC(C)c1ccc(Cl)cc1)CC2.O=C(O)/C=C\C(=O)O
b: Cc1ccc(OCCCC(=O)Nc2ccc3c(c2)OCCO3)cc1
c: CCC(=O)Nc1ccccc1-c1nc2ccccc2[nH]c1=O
d: CNC(=S)N1N=C(c2ccc(C)cc2)CC1c1cc(OC)ccc1OC
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}