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: Well, some other people feel insecure about life-sentences in prison!

SOLUTION: Valid

PROBLEM: One must be subject to requirements of "appropriateness" when defending against rapists and murderers forcing themselves into one's own dwelling.

SOLUTION: Invalid

PROBLEM: Courts take the position that, it is not their's to punish, our laws are there to protect individuals or groups, and to rehabilitate perpetrators when possible (not in the case of murder obviously though).

SOLUTION:
Valid

