About: http://webisa.webdatacommons.org/253753255

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	A further problem arises due to some wireless network service providers transmitting signals at a high frequency, which causes the signal to be blocked by walls in certain types of buildings.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com