<http://webisa.webdatacommons.org/234814054>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<directionsmag.com> .
<http://webisa.webdatacommons.org/234814054>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/prov/144679591>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/234814054> .
<http://webisa.webdatacommons.org/234814054>	<http://www.w3.org/ns/prov#value>	"Previous versions of indoor positioning relied on received signal strength indicator (RSSI) technology, where signal strength and performance can vary depending on environmental factors such as crowd density or temperature." .