TASK DEFINITION: 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.
PROBLEM: Videlicet, one cannot simply state that all homosexuals are nice people.

SOLUTION: Invalid

PROBLEM: Can life imprisonment for a definite yes, prevent a murderer from killing again?

SOLUTION: Valid

PROBLEM: not all are serial killers, and it costs more money to kill these people then keep them in prison for 50 years

SOLUTION:
Valid