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 killers in the Columbine massacre obtained three guns via a straw purchase by another student, acquired their automatic from a gun dealer and purchased a fourth from a seperate student.

SOLUTION: Valid

PROBLEM: Let's see what they get, when REAL trouble happens, and they have to stop everything, and try to load the gun!

SOLUTION: Valid

PROBLEM: Making a gun free zone does nothing to prevent guns from entering it.

SOLUTION:
Valid