MissingEtTruth_p1 Node1 MissingEtTruth_p1 + MissingEtTruth_p1() + ~MissingEtTruth_p1() Node2 MissingET_p1 # m_source # m_ex # m_ey # m_etSum + MissingET_p1() + ~MissingET_p1() Node2->Node1 #m_met Node3 MissingEtRegions_p1 + MissingEtRegions_p1() + ~MissingEtRegions_p1() Node3->Node2 #m_regions Node4 std::vector< double > + elements Node4->Node1 #m_etSumTruth #m_eyTruth #m_exTruth Node4->Node3 #m_etReg #m_eyReg #m_exReg