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: Even though gun clubs at school are not the problem this anti gun/gun control advocate defends no guns at school.

SOLUTION: Valid

PROBLEM: Btw, the DC ban allowed for residents to keep their existing registered guns and exempted shotguns and rifles.

SOLUTION: Valid

PROBLEM: I agree that it���s terrible that no one was able to stop the individual in this case, but I���m not sure that extreme answers that could cause other problems are necessarily good solutions to isolated mass shooting incidents.

SOLUTION:
Valid