Assertion: mortarboard | /r/HasProperty | constructed
Facets:
value: from polymer materials
type: OTHER
value: preferably
type: DEGREE
Source sentences:
text: The mortarboards of this invention can also be configured for nesting and ease of stacking and storage when not in use, and are preferably constructed from polymer materials which provide lightweight and structural strength and resistance to severe environmental conditions and abuse to which such mortarboards may be subjected.