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.

Example Input: 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.
Example Output: Valid

Example Input: I think it is philosophically and morally justified to execute anyone who has murdered another human being.
Example Output: Valid

Example Input: The jury sees partially false evidence which has been biased by a lawyer and the emotions of the family members, and then convicts an innocent person and sentence him to death.
Example Output:
Valid