Find the inverse of the matrix. 
Definitions:
Chyme
The semifluid mass of partly digested food that moves from the stomach to the small intestine.
Feces
Waste matter discharged from the bowels after food has been digested, consisting of remains of ingested food, bacteria, and dead cells.
Mucosa
A moist tissue layer that lines certain internal surfaces of the body, including the nose, mouth, lungs, and digestive tract.
Colon
Division of the large intestine that extends from the cecum to the rectum.
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