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.

Input: Consider Input: Many people contend - and prove - that it's more costly to execute a man or to keep a man on deathrow than it would be to keep him in prison for life.

Output: Valid


Input: Consider Input: Haha, yeah I am agnostic, but it was a little joke I made ;)

Output: Invalid


Input: Consider Input: I KNOW IT COSTS A LOT TO KEEP AN INMATE IN PRISON.


Output: Valid