About: http://webisa.webdatacommons.org/144056493

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	Preferably, one of the edges of the first projection qk is an edge where a ???crossing??? is identified as described above.
http://www.w3.org/ns/prov#wasQuotedFrom	google.fr