About: http://webisa.webdatacommons.org/121135818

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	Otherwise the filter becomes overloaded and can no longer protect the health and appearance of the pond.As the bacteria live on a solid surface, there is an upper limit to how many can live on a given area, i.e. their population density.
http://www.w3.org/ns/prov#wasQuotedFrom	patentgenius.com