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.

Q: Indeed, the right to keep and bear arms���which we have explained pre-existed, and therefore was preserved by, the Second Amendment���was subject to restrictions at common law.

A: Valid
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Q: In Silveira v. Lockyer the 9th Circuit Court ruled that California's Assault Weapons Control Act is not unconstitutional and that the second amendment does not protect an individual right.

A: Valid
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Q: buying guns, there is no requirement that federally licensed gun manufacturers and dealers

A:
Valid
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