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: Stanford did an experiment on prison rehabilitation and psychology, and had an extremely interesting outcome.

Answer: Valid


Question: People have been found out to be innocent after the death penalty ha already been carried out....

Answer: Valid


Question: It's simply getting harder and harder to commit a crime, especially without getting caught.

Answer:
Invalid