Assertion: ounce's gram | /r/HasProperty | displaced by the kilogram
Facets:
value: as the fundamental unit for mass
type: PURPOSE
Source sentences:
text: The CGS system co-existed with the MKS system of units, first proposed in 1901, during much of the 20th century, but the gram has been displaced by the kilogram as the fundamental unit for mass when the MKS system was chosen for the SI base units in 1960.