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.

I believe that we should attempt to prevent suicide in the general population.
Invalid

There are many reasons the death penalty should be abolished.
Valid

If you just shot suspects without a trial it'd be even cheaper, it'd probably have a decent deterrent effect too.

Valid