About: http://webisa.webdatacommons.org/174273809

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 tongue may be substantially rigid and typically there is a small gap of ca. 1.5 mm between the upper surface of the cross member and the lower surface of the tongue.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com