Complex sentence: The company presents three fully staged operas each year and in August 1985 under General Manager John Hiddlestone was one of only three American opera companies to have been invited to perform at the Edinburgh International Festival.
Split into simpler sentences: The company presents three fully staged operas each year. In August 1985, under General Manager John Hiddlestone, it was one of only three American opera companies to have been invited to perform at the Edinburgh International Festival.