Assertion: bookcase's shelf | /r/HasProperty | 12 inches deep
Facets:
value: to allow ample room
type: PURPOSE
Source sentences:
text: Most bookcases have shelves that are least 12 inches deep.
text: Most shelves are at least 12 inches deep to allow ample room for storage, but some bookcases, especially ladder or leaning styles, have narrower shelving.
text: Most shelves are at least 12 inches deep to allow ample room for storage, but some bookcases, especially ladder or leaning styles, have narrower shelving.
text: Standard shelves are at least 12 inches deep.