We would like you to assess the QUALITY of each of the following argument (discussing Gun Control) 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 gun control. An invalid argument is a phrase that cannot be interpreted as an argument or not on the topic of gun control.

[EX Q]: Medical coding consists of classifying medical procedures and diagnostics for billing purposes.
[EX A]: Invalid

[EX Q]: Gun control activists love to point out any time the NRA or other organizations oppose any firearms restrictions, but often fail to point out when these same groups offer support.
[EX A]: Valid

[EX Q]: Stun guns should also last a lifetime - and have very few reliability issues.
[EX A]:
Valid