About: http://webisa.webdatacommons.org/430929100

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	Exactly how the tunnel was excavated was never discovered because no tools were ever found but it is believed that knives and other kitchen utensils were adapted or used for the job.
http://www.w3.org/ns/prov#wasQuotedFrom	fsnet.co.uk