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: The problem with the death penalty is eventually someone will be sentenced to death when they are in fact guilty.

SOLUTION: Valid

PROBLEM: The reason why I'm for death penalty is because some people can be so dangerous fir the society, like serial murderer or maniac, so that they must be punished by this method.

SOLUTION: Valid

PROBLEM: No death by execution is not inherently disrespectful of life, there must be punishment and proportionality to every crime where it should be clear that the proportionate principle is a maximum, not mandatory.

SOLUTION:
Valid