Assertion: lamp's light | /r/HasProperty | emitted
Facets:
Source sentences:
text: Light of a characteristic frequency is thus emitted.
text: Once the plasma is fully formed, the plasma strips away the outer electrons from the mercury; when these electrons return to a lower energy level, visible and ultraviolet light is emitted.
text: nm is produced along with the blue light that is emitted when an electric current is passed through mercury vapor," according to the University of Nebraska.