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: Australia's laws mandating that all guns be kept locked up, and the lack of the ability to claim self-defense when shooting a violent home invader, has made Australia a very dangerous place to live or visit.

SOLUTION: Valid

PROBLEM: Maybe the vast majority of gun owners aren't as opposed to

SOLUTION: Invalid

PROBLEM: If the D.C. gun ban was ineffective because illegal guns were leaking into D.C. from other states that would be an argument for having more gun control in other states.

SOLUTION:
Valid