Assertion: memorial's wall | /r/CapableOf | increase the shaft
Facets:
value: from 25 feet
type: OTHER
value: well
type: MANNER
Source sentences:
text: Two-foot high marble surface stones, using an equal number of stretchers and headers, were backed by granite blocks from the 152-foot level (the first course above the rubble) to the 218-foot level, where marble headers become increasingly visible on the internal surface of the walls up to the 450-foot level, above which only marble stones are used.[K] Between the 150- and 160-foot levels the inner walls rapidly slope outward, increasing the shaft well from 25 feet 1 inch square to 31 feet 5 1⁄ 2 inches (9.59 m) square with a corresponding decrease in the thickness of the walls and their weight.:sheets