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.

[EX Q]: If a gun owner knowingly sells to a prohibited felon who commits a murder with the gun, then the felon alone is responsible for the murder.
[EX A]: Valid

[EX Q]: There is no need to go crazy and ban guns, which would probably kill more than it saves, not to mention the infringement on our civil liberties.
[EX A]: Valid

[EX Q]: If a gun used to commit crimes isn't found in the registry, then the registry isn't much of a valuable crime fighting tool is it?
[EX A]:
Valid