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.

[EX Q]: it wouldnt even exist if it werent for the human mind.
[EX A]: Invalid

[EX Q]: Since I am not related to any death-row-inmate's victims (of murder, rape, molestation), I do not classify my desire to see them dead as vengeance.
[EX A]: Valid

[EX Q]: No possible way to obtain a statistic like that and have any accuracy at all.
[EX A]:
Invalid