TASK DEFINITION: We would like you to classify each of the following sets of argument pairs (discussing Gun Control)  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: This appeared to me to be an argument that self defense cannot exist if a gun is used.
 Sent2: Like I said before, claiming that semi-automatic rifles get a lower level of constitutional protection than handguns because they are less useful for self defense seems absurd from historical point of view.

SOLUTION: Not similar

PROBLEM: Sent1: Background checks at gun shows, waiting periods, and restrictions on buying guns in bulk-
 Sent2: It's pointless people with criminal backgrounds aren't buying guns from gun stores (all of which already run background checks) there are no background checks on the black market and laws won't change that.

SOLUTION: Not similar

PROBLEM: Sent1: I see you always use gun crime rates as an argument, are you totally uninterested in other types of violent crimes, what happens when all guns are banned and we only have knife crimes?
 Sent2: You can not use this as evidence that the reduction in crime is due to the gun ban.

SOLUTION:
Not similar