About: http://webisa.webdatacommons.org/447754344

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	pentagon or oval. Many types of materials may be used to manufacture base 13. For example, carbon steel plate may be used in fabrication of base 13.
http://www.w3.org/ns/prov#wasQuotedFrom	docstoc.com