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.
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Question: As of yet, we have not seen fact one that even one innocent person has been put to death.

Answer: Valid


Question: The death penalty is much more expensive than life without parole because...blah.blah.blah...*

Answer: Valid


Question: The death penalty again has not only shown but proved to deter murder so therefore i wpuld suggest you reconsider your closing arguments.

Answer:
Valid