About: http://webisa.webdatacommons.org/204825491

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	I doubt there is a protocol or guideline for who can observe - it is mostly left to if the surgeon, anaesthetist and patient do not mind.
http://www.w3.org/ns/prov#wasQuotedFrom	mumsnet.com