<http://webisa.webdatacommons.org/prov/153819052>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/395878438> .
<http://webisa.webdatacommons.org/395878438>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<nfb.org> .
<http://webisa.webdatacommons.org/395878438>	<http://www.w3.org/ns/prov#value>	"Those of us who operate vending stands often have the experience of our sighted assistant being questioned as to price and other matters when the operator of the stand is much better informed." .
<http://webisa.webdatacommons.org/395878438>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .