About: http://webisa.webdatacommons.org/6153324

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	In RF communications, there are instances especially within buildings and in connection with other structures such as walls or containers where these structures create a barrier to the transmission of the RF signals.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com