About: http://webisa.webdatacommons.org/115698057

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 think that the problem in your question is the assumption that there is a moment when everybody has done their measurement and they have exchanged the outcome.
http://www.w3.org/ns/prov#wasQuotedFrom	blogspot.com