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: The militia and the citizens at large would only carry weapons that civilized nations would use in warfare, they would not rightfully carry weapons useful only to criminals.

SOLUTION: Valid

PROBLEM: Indeed, the right to keep and bear arms���which we have explained pre-existed, and therefore was preserved by, the Second Amendment���was subject to restrictions at common law.

SOLUTION: Valid

PROBLEM: You probably think he is just afraid to upset gun owners.

SOLUTION:
Invalid