<http://webisa.webdatacommons.org/316556425>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<docstoc.com> .
<http://webisa.webdatacommons.org/prov/111761028>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/316556425> .
<http://webisa.webdatacommons.org/316556425>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/316556425>	<http://www.w3.org/ns/prov#value>	"Statistical uncertainty: Due to imperfect or incompletely information of the variable and can be reduced by additional information, such as dent depth, crack size, etc." .