InDetSimData_p1 Node1 InDetSimData_p1 + m_word + InDetSimData_p1() Node2 std::vector< HepMcParticle Link_p1 > Node2->Node1 +m_links Node3 HepMcParticleLink_p1 # m_mcEvtIndex + HepMcParticleLink_p1() + HepMcParticleLink_p1() Node3->Node2 +elements Node4 long Node4->Node3 #m_barcode Node5 std::vector< float > + elements Node5->Node1 +m_enDeposits