Complex sentence: The glyphs, which form the centre piece of the park, are large whitewashed stones, arranged on the side of the hill and represent the battalions numbers 137,113,151, and 51.
Split into simpler sentences: The glyphs, which form the centre piece of the park, are large whitewashed stones, arranged on the side of the hill. They represent the battalions numbers 137,113,151, and 51.