TrkTrack → Event Relation

File in Tracking/TrkEvent/TrkTrack	Includes file in Event
TrkTrack / ObservedTrackMap.h	xAOD / xAODCore / xAODCore / Event/xAOD/xAODCore/xAODCore/CLASS_DEF.h
TrkTrack / ObservedTrackMap.h	xAOD / xAODTracking / xAODTracking / TrackingPrimitives.h