About: http://webisa.webdatacommons.org/366841668

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 step 706, two points defining an interval along the image of the ruler appearing in the image video 301 are marked with graphical markers controlled by a graphical interface, such as a mouse.
http://www.w3.org/ns/prov#wasQuotedFrom	google.ca