About: http://webisa.webdatacommons.org/191413593

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	If the neighbors alternate, as in the sequence above-below-above-below, then the point is a saddle or pass.
http://www.w3.org/ns/prov#wasQuotedFrom	americanscientist.org