instruction:
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.
question:
It's only expensive due to the idiots who think keeping a truly twisted criminal alive is a "humane" thing to do.
answer:
Valid


question:
i think the death penalty should be abolished because some people are sentenced to deathfor a crime they might have not committed.
answer:
Valid


question:
I've followed this debate for years (I work in a prison), and i have never heard it suggested by anyone other than those who oppose the Penalty, that the Penalty is a deterrent.
answer:

Valid