About: http://webisa.webdatacommons.org/211671743

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	The signal is omni-directional and arrives at an object, such as 60 in both Figures, and at its own receiver 20.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com