Assertion: uranium | /r/ObjectUse | used as coloring matter
Facets:
value: for porcelain
type: TRANSITIVE-OBJECT
value: widely
type: DEGREE
value: for glass
type: PURPOSE
Source sentences:
text: Uranium (both depleted uranium and natural uranium) was widely used as a coloring matter for porcelain and glass in the 19th and early-to-mid-20th century.