About: http://webisa.webdatacommons.org/456387154

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	Once you have an introduction to the wedge, screw, inclined plane, and other simple machines, try to find the six simple machines that are found on the lawn mower to see how they work together.
http://www.w3.org/ns/prov#wasQuotedFrom	pbs.org