sentences:  The conch shell is also used as a signal in Buddhist ceremonies in the Far East.In Tibet it is known as the "dun-dkar", or "dung-dkar"; in China it is the "faluo" or "hai lo", and in Japan the "horagai" or "hora".The earliest artificial trumpets appeared before the end of the Neolithic, and were adapted from the natural models provided by animal-horns and conch-shells.