About: http://webisa.webdatacommons.org/167121444

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	These positions furnish maximum physical stability without the need of a back rest or other devices and are especially suitable if one intends to remain alert and motionless for protracted periods of time.
http://www.w3.org/ns/prov#wasQuotedFrom	accesstoinsight.org