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: I'm afraid that you're just going to have to accept that if you want to save the many, you may have to sacrifice the few.
Example Output: Invalid

Example Input: Why is it then that this right to kill our aggressors in self defense should end with our lives?
Example Output: Valid

Example Input: The death penalty provides a possible (but by no means apparent) benefit on crime rates compared to imprisonment, but a very definite loss on human happiness.
Example Output:
Valid