Assertion: porcelain | /r/MadeOf | bone ash
Facets:
Source sentences:
text: In 1749, Thomas Frye took out a patent on a porcelain containing bone ash.
text: In 1749, Thomas Frye took out a patent on a porcelain containing bone ash.
text: In 1749, Thomas Frye took out a patent on a porcelain containing bone ash.
text: In 1749, Thomas Frye, a portrait painter, took out a patent on a porcelain containing bone ash.