TASK DEFINITION: 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.
PROBLEM: Sent1: Actually, the idea that the death penalty costs more than lifetime imprisonment has been disproved many times.
 Sent2: Not to mention that the death penalty is more costly than simple life in prison in both money and time.

SOLUTION: Similar

PROBLEM: Sent1: We shouldn't just kill someone if they commit a crime.
 Sent2: So, when someone gets the death penalty, they chose their own fate by committing the crime.

SOLUTION: Not similar

PROBLEM: Sent1: I dont believe that someone who killed or raped a lot of people should be able to live even if they are in a jail surrounded by other criminals.
 Sent2: What if there were people killing other people, escaping from jail, doing it again etc.

SOLUTION:
Not similar