Task: Please answer the multiple choice question.
Question: Which molecules are a human ether-à-go-go related gene (hERG) blocker?
Constraint: You must select none, one or more options from a, b, c, or d without using any other words.
Options:
a: O=c1c(-c2nnc(SCc3ccc(Cl)cc3Cl)o2)cccn1Cc1ccccc1
b: COc1ccc(N2CCN(CC(=O)Nc3ccc(-n4cnnn4)cc3)CC2)cc1
c: CCCCCCN1C=CC=C/C1=C\C=C(C#N)C#N
d: COc1cc(OC)c(C2=Nc3ccc(Br)cc3C(c3ccccc3)N2CC(=O)NN)cc1OC
Answer: a, c
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}