About: http://webisa.webdatacommons.org/111166700

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	you control the placement of your drawing tools by constraining the mouse movement to specific planes or by setting up constraints to movement with snap settings that are adjusted according to layers and types of geometry.
http://www.w3.org/ns/prov#wasQuotedFrom	harvard.edu