About: http://webisa.webdatacommons.org/214104752

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	Because of the losses in transmission and reflection, to achieve ranges of more than a few kilometers requires laser technologies such as Nd:YAG or Erbium:Glass which are relatively expensive.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com