Trk::DetailedTrackTruth_p1 Node1 Trk::DetailedTrackTruth_p1 Node2 Trk::TruthTrajectory_p1 Node2->Node1 +m_trajectory Node3 std::vector< HepMcParticle Link_p1 > Node3->Node2 Node4 T Node4->Node3 +elements Node5 Trk::SubDetHitStatistics_p0 + numPRDs Node5->Node1 +m_hitsTrack +m_hitsCommon