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.

They're more to help the guards than the prisoners.
Invalid

So I have a solution, how would you feel about a convicted rapist being casterated along with his prison sentence, then upon release he is not likely to repeat the crime.
Valid

The death penalty is the only acceptable answer in this case.

Valid