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: Overall, I'd say, we'd spare ourselves a lot if we just went with locking some people up and throwing away the key.
Example Output: Valid

Example Input: People have been found out to be innocent after the death penalty ha already been carried out....
Example Output: Valid

Example Input: Even if the death penalty does not deter serial killers, it prevents them from killing again in society or in prison.
Example Output:
Valid