Assertion: porcelain | /r/HasProperty | material
Facets:
value: historically
type: TEMPORAL
Source sentences:
text: Porcelain is a material made from well-chosen porcelain clay or pottery stone through technological processes like proportioning, molding, drying and firing.
text: Porcelain has historically been the material used in the production of fine dinnerware.
text: Ceramic and porcelain are two materials that are strong and smooth, but breakable.
text: Porcelain is a material which originated in China.