Complex sentence: The group produced and exhibited furniture and design objects, annually from 1981 until 1988, including a highly-acclaimed debut at the 1981 Salone del Mobile of Milan, the world's most prestigious furniture NEWY fair.
Split into simpler sentences: The group produced and exhibited furniture and design objects, annually from 1981 until 1988. The result was a highly-acclaimed debut at the 1981 Salone del Mobile of Milan, the world's most prestigious furniture NEWY fair.