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: What factors affect the demand, Mayor Bloomberg, of the criminals in your city for guns that provides such a large and profitable market for gun runners?
Example Output: Valid

Example Input: And (I'm going to use the high estimate this time) would you say 972,000 incidents per year that someone saves a live or prevents a murder with a gun means guns are "not effective for protection?"
Example Output: Valid

Example Input: Law abiding citizens obey the law, there can surely be no reason to prohibit them form having guns.
Example Output:
Valid