Assertion: balsa's structure | /r/HasProperty | accessible
Facets:
value: for maintenance
type: PURPOSE
value: after initial construction
type: TEMPORAL
Source sentences:
text: Since they can carry so much weight by themselves, their presence enables builders to achieve maximal economy of materials, easily cover large distances with simple truss meshes, evenly take the load from heavy structures, easily access entire structure, save on expensive materials, and build structures that are accessible for maintenance after initial construction.