About: http://webisa.webdatacommons.org/198213724

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	A screw is a simple machine that consists of an inclined plane wrapped around a central cylinder.
http://www.w3.org/ns/prov#wasQuotedFrom	ck12.org