About: http://webisa.webdatacommons.org/93228170

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	ing spaced rigid rungs and being supported by the rigid ladder at such a height as to prevent the flexible ladder from contacting with any supporting surface on which the uprights are mounted. 9.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com