Complex sentence: Llyn-y-Foel ("lake of the mountain" in Welsh) is a lake in Snowdonia, Wales approximately 240 m across, 120 m wide and up to 2 m deep.
Split into simpler sentences: Llyn-y-Foel ("lake of the mountain" in Welsh) is a lake in Snowdonia, Wales. It is approximately 240 m across, 120 m wide and up to 2 m deep.