About: http://webisa.webdatacommons.org/159108751

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	???When hitting obstacles such as rocks, the unit???s individually attached concave discs can move upward independently of each other, whereas on ordinary disc harrows half the machine will lift up.???
http://www.w3.org/ns/prov#wasQuotedFrom	farmshow.com