<http://webisa.webdatacommons.org/140506677>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<sciencedaily.com> .
<http://webisa.webdatacommons.org/140506677>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/prov/335299829>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/140506677> .
<http://webisa.webdatacommons.org/140506677>	<http://www.w3.org/ns/prov#value>	"In museums or hospitals, navigation systems could guide people through large buildings by reading the final destination signal from a hand-carried photodiode device and initializing lights or other indicators to show the proper path." .