Assertion: light year | /r/HasProperty | a unit of distance
Facets:
value: like feet
type: OTHER
value: like inches
type: OTHER
Source sentences:
text: A light-year is a unit of distance.
text: A light-year is a unit of distance measurement based on the travel of light energy, undisturbed in a vacuum, over the course of one Earth year.
text: A light-year is a unit of distance, just like feet and inches.
text: The light year is a unit of distance that comes from the knowledge that light (or electromagnetic radiation in general) takes a finite length of time to travel through space.