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

SOLUTION: Valid

PROBLEM: Jail is NOT a place to SOCIALIZE, and not a place to receive "LUXURIES".

SOLUTION: Valid

PROBLEM: Actually, the idea that the death penalty costs more than lifetime imprisonment has been disproved many times.

SOLUTION:
Valid