Assertion: light year | /r/HasProperty | traveled by light
Facets:
value: in one year
type: TEMPORAL
Source sentences:
text: (A light-year is the distance traveled by light in one year and is roughly 9,460,000,000,000 km [5,880,000,000,000 miles].)
text: One light-year is the distance traveled by light in one year.
text: Since a light-year is the distance traveled by light in one year, does this mean that the universe is very old?