About: http://webisa.webdatacommons.org/132528893

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	Thus, words such as upper, lower, upwardly, downwardly, vertical, and the like are used in the above description and in the claims in conjunction with the drawings for purposes of clarity, and are not intended to be limiting.
http://www.w3.org/ns/prov#wasQuotedFrom	google.es