MergedEventInfo_p2 Node1 MergedEventInfo_p2 + MergedEventInfo_p2() + ~MergedEventInfo_p2() Node2 EventInfo_p3 + EventInfo_p3() Node2->Node1 Node3 std::vector< unsigned int > + elements Node3->Node1 +m_newEventIDdata Node3->Node2 +m_AllTheData