Complex sentence: Llewellyn "Llew" Treharne was a Welsh professional rugby league footballer who played in the 1900s, playing at representative level for Wales, and at club level for Wigan, as a, or, i.e. number 2 or 5, or, 3 or 4.
Split into simpler sentences: Llewellyn "Llew" Treharne was a Welsh professional rugby league footballer who played in the 1900s. He played at representative level for Wales, and at club level for Wigan, as a, or, i.e. number 2 or 5, or, 3 or 4.