Source

http://premon.fbk.eu/resource/fn17-visiting_scenario_departing@source an entity of type: Concept

Any constituent that expresses the initial position of the Agent, before the change of location, is tagged with Source. Often the Source is understood from context.
xsd:dateTime 2007-05-21T11:04:05+02:00 
Source 
xsd:int 11765 
Src 

data from the linked data cloud