Task: Text Categorization
Input (English): The Chikyu Hakken is a current mission to drill three times deeper into this region than ever before, and the lowermost part was named the D double prime region by Keith Bullen. The uppermost part consists of periodite and eclogite, though the mix of magnesium, silicon, oxygen, and other elements suggests its composition is like garnet. Hot spots are thought to be caused by the protrusion of hot rock here, known as plumes. For 10 points, name this region in the Earth, divided into upper and lower parts and located below the crust and above the core.
Output (English): Science