Assertion: prototype kilogram | /r/HasProperty | commissioned by the general conference
Facets:
value: on measures
type: OTHER
value: on weights
type: LOCATION
Source sentences:
text: The International Prototype Kilogram was commissioned by the General Conference on Weights and Measures under the authority of the Metre Convention, and is in the custody of the International Bureau for Weights and Measures who hold it on behalf of the CGPM.