Complex sentence: Parth Galen is a fictional place in J. R. R. Tolkien's Middle-earth, a green lawn above the Falls of Rauros at the feet of Amon Hen.
Split into simpler sentences: Parth Galen is a fictional place in J. R. R. Tolkien's Middle-earth. It was a green lawn above the Falls of Rauros at the feet of Amon Hen.