<http://webisa.webdatacommons.org/prov/269103721>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/68173960> .
<http://webisa.webdatacommons.org/68173960>	<http://www.w3.org/ns/prov#value>	"The theoretical element consists of the history of GPS and a discussion of other competing systems such as Glonass and the Beidou Navigation Satellite System." .
<http://webisa.webdatacommons.org/68173960>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/68173960>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<fdu.edu> .