<http://webisa.webdatacommons.org/prov/458740068>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/291218980> .
<http://webisa.webdatacommons.org/prov/47631628>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/291218980> .
<http://webisa.webdatacommons.org/291218980>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<freepatentsonline.com> .
<http://webisa.webdatacommons.org/prov/297766531>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/291218980> .
<http://webisa.webdatacommons.org/prov/412923308>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/291218980> .
<http://webisa.webdatacommons.org/291218980>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/291218980>	<http://www.w3.org/ns/prov#value>	"In general, a dimension, size, formulation, parameter, shape or other quantity or characteristic is ???about??? or ???approximate??? whether or not expressly stated to be such." .