About: http://webisa.webdatacommons.org/432005333

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	In this chapter, you learn how to clear the screen and to draw geometric objects, including points, straight lines, and flat polygons.
http://www.w3.org/ns/prov#wasQuotedFrom	glprogramming.com