. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . "In this frame, the Undergoer, an inorganic item, undergoes a chemical process caused by another entity, which renders it less useful, desirable or stable. The process may or may not be under the control of an Agent.\n\nThe metal was corroded by the water.\nAcid rain corroded the metal into a mass of slime."^^ . . . . . .