TASK DEFINITION: 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.
PROBLEM: The death penalty is not an act of injustice or additional dysfunction, it is about protecting life from the act of unwarranted aggression.

SOLUTION: Valid

PROBLEM: Tony Martin, who was convicted of murder for shooting in the back someone who was running away.

SOLUTION: Invalid

PROBLEM: Someone who commits a crime that serious should at least be behind bars for the rest of their life, no parole at all.

SOLUTION:
Valid