Assertion: pyramid's stone | /r/CapableOf | form smooth outer surface
Facets:
Source sentences:
text: Originally, the Great Pyramid was covered by limestone casing stones that formed a smooth outer surface; what is seen today is the underlying core structure.
text: Originally, the Great Pyramid was covered by limestone casing stones that formed a smooth outer surface; what is seen today is the underlying core structure.
text: When it was built, Great Pyramid was covered by white stones that formed a smooth outer surface.
text: Originally the Great Pyramid was covered by casing stones that formed a smooth outer surface, and what is seen today is the underlying core structure.