Task: Text Matching
Input (English): Sent1: DC doesn't need to have an age restriction on gun ownership, because no matter what their laws say, you still have to be at least 18 to pass a federal background check to buy a gun.
 Sent2: No it's federal law that you have to run background checks in order to keep your FFL (federal firearms license) which allows you to legally sell guns.
Output (English): Not similar