instruction:
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.
question:
There has seldom if ever been any occurrence in which someone has violently avenged a murderer's death.
answer:
Valid


question:
Some human beings have proven they have forfeited the right to continue to breathe the same air as civilized people, PERIOD!!!
answer:
Valid


question:
Scott Blonien, assistant secretary of the department, characterized Stern's objections as more individual than professional.
answer:

Invalid