About: http://webisa.webdatacommons.org/436809125

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 modulated signals 123-124 may comprise any analog or digitally modulated signal, such as frequency modulated (FM) signals, quadrature amplitude modulated (QAM) signals, and quaternary phase shift keying (QPSK) modulated signals.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com