About: http://webisa.webdatacommons.org/368016186

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	This 24-hour ???master clock??? responds to cues in your surroundings, especially light and darkness.
http://www.w3.org/ns/prov#wasQuotedFrom	nih.gov