<http://webisa.webdatacommons.org/439302623>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/prov/141492900>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/439302623> .
<http://webisa.webdatacommons.org/439302623>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<internetretailer.com> .
<http://webisa.webdatacommons.org/439302623>	<http://www.w3.org/ns/prov#value>	"Some retailers, notably Walgreen Co., have installed new equipment, optical scanners, so they can can read two-dimensional bar codes, including QR codes, from smartphone screens." .