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.

Example Input: Like i said, it it takes more than opinion to make me believe something so prove it not by opinions but by sources that supports the point you are making in relation to the same studies.
Example Output: Invalid

Example Input: Deterrence is not the only reason I support the death penalty.
Example Output: Valid

Example Input: Eyewitnesses are frequently unreliable, DNA evidence has been overturned, and even personal confessions are unreliable: several people confessed to being the Yorkshire Ripper here in the UK who were found to have nothing to do with it.
Example Output:
Valid