Assertion: unit | /r/HasProperty | defined on scientific basis
Facets:
value: generally
type: MANNER
Source sentences:
text: Units of measurement are generally defined on a scientific basis, overseen by governmental or independent agencies, and established in international treaties, pre-eminent of which is the General Conference on Weights and Measures (CGPM), established in 1875 by the Metre Convention, overseeing the International System of Units (SI).