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]: There is no way of proving the level of deterrent that any given action is worth.
[EX A]: Valid

[EX Q]: Implementing the death penalty will send a message to others that no one should have the right to kill another person.
[EX A]: Valid

[EX Q]: My main compairison was that the Russians never bombed anyone outside of testing with in their own borders.
[EX A]:
Invalid