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]: As Dieter and other death penalty opponents make no distinction between the actually innocent and the legally innocent, why don't they claim that over 2500 innocents have been "exonerated" from death row?
[EX A]: Valid

[EX Q]: I support the death penalty, but feel there needs to be a better system of checks and balances to ensure each individual gets a fair trial using all evidentiary methods available.
[EX A]: Valid

[EX Q]: Prior to the A-bombs, Japanese citizens began preparing for a massive Allied invasion.
[EX A]:
Invalid