About: http://webisa.webdatacommons.org/189192617

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	Presumably, this question is asking about finding the greatest percentage decrease in water usage (seeing as your answer is a percent).
http://www.w3.org/ns/prov#wasQuotedFrom	stackexchange.com