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.

The death penalty has been found to be a more effective deterrent to crimes against children.
Valid

Life imprisonment without parole is more effective than execution, and it is cheaper.
Valid

- but because of changed laws, there have been people who have been set free even though they were supposed to be in jail for life.
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Valid

