instruction:
We would like you to classify each of the following sets of argument pairs (discussing Death Penalty) into either SIMILAR or NOT SIMILAR. A pair of arguments is considered SIMILAR if the arguments are about the same FACET (making the same argument), and is considered NOT SIMILAR if they do not have the same FACET. A FACET is a low level issue that often reoccurs in many arguments in support of the author's stance or in attacking the other author's position.
question:
Sent1: The problem with the death penalty is eventually someone will be sentenced to death when they are in fact guilty.
Sent2: Acutally, long ago, the executioner was a convict also sentenced to death.
answer:
Not similar

question:
Sent1: Since I am not related to any death-row-inmate's victims (of murder, rape, molestation), I do not classify my desire to see them dead as vengeance.
Sent2: If I heard of an innocent stranger being brutally killed, I might want to see the perpetrator suffer because of the suffering of the victim - that is VENGEANCE pure and simple.
answer:
Not similar

question:
Sent1: Especially given that you have accepted that some innocent people are executed.
Sent2: Not even having to put aside your conviction that innocents should not be killed, how can you justify not saving 3 to 18 lives of innocent people by killing 1 guilty one.
answer:
Not similar