Task: Question Answering
Input (English): passage: A boomerang is a thrown tool, typically constructed as a flat airfoil, that is designed to spin about an axis perpendicular to the direction of its flight. A returning boomerang is designed to return to the thrower. It is well known as a weapon used by Indigenous Australians for hunting.
 question: can a boomerang be used as a weapon?
Output (English): Yes