Complex sentence: David J. Lewis was a Welsh professional rugby league footballer who played in the 1900s, playing at representative level for Other Nationalities, and at club level for Oldham, as a, i.e. number 2 or 5.
Split into simpler sentences: David J. Lewis was a Welsh professional rugby league footballer who played in the 1900s. He played at representative level for Other Nationalities, and at club level for Oldham, as a, i.e. number 2 or 5.