About: http://webisa.webdatacommons.org/431906022

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	In your case you have had several of these and they have been negative - you have also had a 4th generation test and that is negative.
http://www.w3.org/ns/prov#wasQuotedFrom	medhelp.org