About: http://webisa.webdatacommons.org/433409862

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	Desirably, the base has a substantially flat bottom which facilitates mounting of the base to a deck or other flat surface of a marine craft.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com