Assertion: unit | /r/HasProperty | day
Facets:
value: usually
type: DEGREE
Source sentences:
text: Originally, the acre was one of a family of units of measure used to represent the amount of land that a man could plow by hand in a unit of time, usually a day.
text: For example, so far we have converted units of time (days to hours, and vice versa) and then we converted units of distance (yards to feet), and this is normal.