<http://webisa.webdatacommons.org/21221799>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<nfb.org> .
<http://webisa.webdatacommons.org/21221799>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/21221799>	<http://www.w3.org/ns/prov#value>	"The Click Rule is an efficient tactile and auditory measuring device that allows for accurate readings up to 1/16 of an inch, or up to one millimeter." .
<http://webisa.webdatacommons.org/prov/311305667>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/21221799> .