About: http://webisa.webdatacommons.org/211729630

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	The steel comes to a job already cut and built up in to various kinds of columns and beams and girders; the columns are the perpendicular pieces and the beams and girders are the horizontal ones.
http://www.w3.org/ns/prov#wasQuotedFrom	pbs.org