About: http://webisa.webdatacommons.org/196589050

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 the latter case, since all three are strangers to A, we have four strangers including A. So we have either four friends or four strangers, which is just what we claimed.
http://www.w3.org/ns/prov#wasQuotedFrom	maths.org