About: http://webisa.webdatacommons.org/9203051

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	Independent grid systems required reconciliation by means of algorithmic equations to convert local coordinates into a unified master grid, allowing researchers to graphically plot artifact types by means of a simple SVG plug-in.
http://www.w3.org/ns/prov#wasQuotedFrom	umass.edu