About: http://webisa.webdatacommons.org/174766260

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	Basic rule of thumb is that if your mouth is not above the water, you need more buoyancy but remember it will be very different in different kinds of water.
http://www.w3.org/ns/prov#wasQuotedFrom	sailingproshop.com