About: http://webisa.webdatacommons.org/70316937

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	You may not, however, be acquainted with some of these less well known markers that serve to inform boaters of well-hidden, underwater obstructions and other hazards encountered while enjoying a day on the water.
http://www.w3.org/ns/prov#wasQuotedFrom	pdbmagazine.com