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]: Deterrence is not the only reason I support the death penalty.
[EX A]: Valid

[EX Q]: For those who say "we need to make sure they don't kill again" no one in the history of maximum security prisons has ever escaped a maximum security prison, so it's not really an issue.
[EX A]: Valid

[EX Q]: Obviously, if someone were found innocent before execution, they would not be executed.
[EX A]:
Valid