About: http://webisa.webdatacommons.org/130457790

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	FIG. 18A is a pattern with a larger central black area than the pattern shown in FIG. 18B. FIGS. 18C and 18D are corresponding patterns with black areas represented by 1 and white areas by 0.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com