Task: Text Matching
Input (English): Sent1: This is needed to prevent gun owners from covering up sales to prohibited purchasers by later claiming ��� when those guns are traced to crime ��� that their guns were stolen.
 Sent2: Would-be gun owners must justify their need for a weapon and undergo competency training and background checks, which prohibit anyone with a history of substance abuse or violent crime from owning a gun.
Output (English): Not similar