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: However although our constitution needs exceptions (no yelling "fire" in a movie theater, and background checks for guns), no rights in the bill of rights should be outright banned.

SOLUTION: Valid

PROBLEM: While slavery was at one time legal, it was not legal as a result of the Constitution or the Bill of Rights.

SOLUTION: Invalid

PROBLEM: And if it did happen, the shooter would be killed in short order by an armed person or persons on the scene before it could turn into a massacre.

SOLUTION:
Valid