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<http://webisa.webdatacommons.org/prov/194842313>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/158387877> .
<http://webisa.webdatacommons.org/158387877>	<http://www.w3.org/ns/prov#value>	"Efficiency of wireless networks is key because there is a limited amount of spectrum to transmit voice, text and Internet services, such as streaming video and music." .
<http://webisa.webdatacommons.org/prov/228912367>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/158387877> .
<http://webisa.webdatacommons.org/158387877>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/prov/226640017>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/158387877> .
<http://webisa.webdatacommons.org/prov/200352456>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/158387877> .