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.

[Q]: It contends that, as recognized in Heller, the Second Amendment does not prevent the government from prohibiting firearms in sensitive places, which includes GMU's university buildings and widely attended university events.
[A]: Valid


[Q]: The bird watchers don't pay doodly squat to enjoy what the hunters and gun purchasers provide for wildlife habitat.
[A]: Valid


[Q]: Well the Supreme Court has specifically stated that the Second Amendment is about self-defense and other lawful purposes, and a sports gun is a poor choice for a self-defense weapon.
[A]:
Valid