About: http://webisa.webdatacommons.org/38079081

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	[PRXMJ-404] The ???why??? field of joining a group request says it is optional but if you leave it empty it tells you it can???t be blank
http://www.w3.org/ns/prov#wasQuotedFrom	prx.org