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: Implementing the death penalty will send a message to others that no one should have the right to kill another person.
Example Output: Valid

Example Input: Wrong again, there have been many, many, many more cases that that:
Example Output: Invalid

Example Input: Is it worth the death that an extra policeman could prevent so that we can get our revenge?
Example Output:
Valid