About: http://webisa.webdatacommons.org/189450437

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. 4 is an example of a minimum extent of a mark (left) and maximum extent of a mark (right) on a unit block-space grid;
http://www.w3.org/ns/prov#wasQuotedFrom	google.com