Filter: The kidneys use epithelial cells to filter waste products from the blood.
(The kidneys; use; epithelial cells; to filter waste products from the blood) Context(The kidneys use,List([8, 23))):(The kidneys; use epithelial cells to filter; waste products; from the blood)
The kidneys use,List([8, 23))
The kidneys The kidneys
use use epithelial cells to filter
epithelial cells to filter waste products from the blood
waste products from the blood