TASK DEFINITION: We would like you to assess the QUALITY of each of the following argument (discussing Gun Control) and determine if the argument is Valid or Invalid. A valid argument is clearly interpretable and either expresses an argument, or a premise or a conclusion that can be used in an argument for the topic of gun control. An invalid argument is a phrase that cannot be interpreted as an argument or not on the topic of gun control.
PROBLEM: JUSTICE STEVENS believes that the unitary meaning of ���keep and bear Arms��� is established by the Second Amendment's calling it a ���right��� (singular) rather than ���rights��� (plural).

SOLUTION: Valid

PROBLEM: In short, the panel could find no link between restrictions on gun ownership and lower rates of crime, firearms violence or even accidents with guns.

SOLUTION: Valid

PROBLEM: When a person walks into a gun shop with the expressed idea of buying a gun to kill someone - in a premeditatd act - that - is a problem isn't it.

SOLUTION:
Valid