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.

[Q]: There are many reasons the death penalty should be abolished.
[A]: Valid


[Q]: When the point that someone on death row was saved by DNA is brought up, it shows that system works because it has saved their life.
[A]: Valid


[Q]: There's no such thing as legal murder, since murder is illegal by nature.
[A]:
Valid