About: http://webisa.webdatacommons.org/446842299

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	Most of the known devices, however, are not completely satisfactory with regard to properties such as handling properties, effectiveness in removing the roots of weeds, reliability of operation, ease of cleaning, etc.
http://www.w3.org/ns/prov#wasQuotedFrom	freepatentsonline.com