About: http://webisa.webdatacommons.org/420197855

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 would have a table that contains a Row per user and a FirmId and anything else you like such as nick name, social security number, whatever.
http://www.w3.org/ns/prov#wasQuotedFrom	stackoverflow.com