Task: Misc.
Input (English): Term: Radar, Description: object detection system based on radio waves, Question: Can radar disappear from in front of people?, Answer:Yes
Output (English): Fact1: Radar is a detection system that uses radio waves to determine the range, angle, or velocity of objects.  Fact2: Radar an be used to detect aircraft, ships, spacecraft, guided missiles, motor vehicles, weather formations, and terrain.