About: http://webisa.webdatacommons.org/131731895

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	The advantage of an external filter is that it does not require equipment other than intake and outlet pipes in an aquarium, and therefore it does not put a limitation on the placement of aquatic plants, rocks, and driftwood.
http://www.w3.org/ns/prov#wasQuotedFrom	tfhmagazine.com