About: http://webisa.webdatacommons.org/336833371

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	Karst groundwater systems, which provide over 40% of the groundwater used for drinking in the U.S., develop in soluble rocks, such as limestone and dolomites.
http://www.w3.org/ns/prov#wasQuotedFrom	northeastern.edu