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.

Example Input: Execution is quick, relatively simple, and very inexpensive regardless of the method used.
Example Output: Valid

Example Input: I'm wondering how long it will take all the numbnuts of the world to realize two important facts of human nature:
Example Output: Invalid

Example Input: We'll later see quotes and links to studies that "prove" CP (capital punishment) is not a deterrent.
Example Output:
Valid