Assertion: building's use | /r/HasProperty | diminishing circular forms
Facets:
value: in the roof treatment
type: LOCATION
Source sentences:
text: The steel was an integral part of Van Alen's design, as E.E. Thum explains: "The use of permanently bright metal was of greatest aid in the carrying of rising lines and the diminishing circular forms in the roof treatment, so as to accentuate the gradual upward swing until it literally dissolves into the sky....