Complex sentence: Montadale is the name of a breed of domestic sheep developed in the 1930s by E. H. Mattingly, a Midwestern commercial lamb buyer who had a dream of developing the ideal sheep.
Split into simpler sentences: Montadale is the name of a breed of domestic sheep developed in the 1930s by E. H. Mattingly. Mattingly was a Midwestern commercial lamb buyer who had a dream of developing the ideal sheep.