About: http://webisa.webdatacommons.org/190068181

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	Periphyton is a complex mixture of algae, detritus, bacteria, and other microbes that grow attached to submerged surfaces such as cobble or larger plants, such as watercress.
http://www.w3.org/ns/prov#wasQuotedFrom	federalregister.gov