We would like you to assess the QUALITY of each of the following argument (discussing Death Penalty) 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 death penalty. An invalid argument is a phrase that cannot be interpreted as an argument or not on the topic of death penalty.

[EX Q]: If we revisit your notion of intent you must needs consider that the firearm is just as capable of defense as it is offense.
[EX A]: Invalid

[EX Q]: It is clear keeping them in prsion would be far more expensive in this case.
[EX A]: Valid

[EX Q]: Once the danger is gone killing a person is simply murder.
[EX A]:
Valid