<http://webisa.webdatacommons.org/prov/299120948> <http://www.w3.org/ns/prov#wasDerivedFrom> <http://webisa.webdatacommons.org/138381092> . <http://webisa.webdatacommons.org/138381092> <http://www.w3.org/ns/prov#value> "The vertex position is of the form (u, v, w), where each of u, v, and w is an integer greater than or equal to zero and the sum of u, v and w is equal to the tessellation level plus one." . <http://webisa.webdatacommons.org/138381092> <http://www.w3.org/ns/prov#wasQuotedFrom> <google.com> . <http://webisa.webdatacommons.org/138381092> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://www.w3.org/ns/prov#Entity> . <http://webisa.webdatacommons.org/prov/300021314> <http://www.w3.org/ns/prov#wasDerivedFrom> <http://webisa.webdatacommons.org/138381092> .