About: http://webisa.webdatacommons.org/79350905

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	Hydrophobic materials such as grease and oil float on the surface which is sometimes referred to as scum.
http://www.w3.org/ns/prov#wasQuotedFrom	turf2max.com