About: http://webisa.webdatacommons.org/135699320

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	This lecture will show you that the vanishing trace is all you need to draw rooftops, stairways and any other surfaces that slant up or down.
http://www.w3.org/ns/prov#wasQuotedFrom	draw123.com