Complex sentence: ITMA (Internationale Textilmaschinen Ausstellung) is the world's most established international textile and garment machinery exhibition owned by CEMATEX (European Committee of Textile Machinery Manufacturers) which is held every four years at different cities in Europe.
Split into simpler sentences: ITMA (Internationale Textilmaschinen Ausstellung) is an international textile and garment machinery exhibition owned by CEMATEX (European Committee of Textile Machinery Manufacturers). The exhibition is held every four years at different cities in Europe.