About: http://webisa.webdatacommons.org/271898959

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	They knew they would have to be able to measure all the materials, such as the water and nutrients, brought into their piece of the forest by raindrops.
http://www.w3.org/ns/prov#wasQuotedFrom	ck12.org