instruction:
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.
question:
Firearms such as the AR-15 and AK-47 have been around for well over half a century and are widespread in ownership and popularity and have more or less become mainstream with the public.
answer:
Valid

question:
The police have absolutely no way of telling who is in possession of an illegal and unregistered firearm, and there's not a law that California can pass to do a thing about it.
answer:
Valid

question:
I think law abiding citizens should be allowed to carry conceled weapons.
answer:
Valid