About: http://webisa.webdatacommons.org/96859559

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	Movement of the mercury ball between the pins and the lid portion will generate signals indicating activity or movement of the patient and the position of the mercury ball indicates whether the patient is standing or lying down.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com