About: http://webisa.webdatacommons.org/34608547

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	This is because we draw a diagonal to each vertex except A and the two vertices adjacent to A. Just as cutting a cake 1 gives 2 pieces, cutting our polygon n-3 times gives one piece more: (n-3)+1=n-2.
http://www.w3.org/ns/prov#wasQuotedFrom	wordpress.com