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.

Example Input: To argue that there are more ethical defensive means than firearms is stupid in my opinion.
Example Output: Valid

Example Input: Medical coding consists of classifying medical procedures and diagnostics for billing purposes.
Example Output: Invalid

Example Input: Since I have taken care to point out that there are Constitutional objections, and you have concurred, I'll assume you will also permit me to pretend that there is no 2nd Amendment.
Example Output:
Valid