lwtDev::NNEvaluationException Node1 lwtDev::NNEvaluationException + NNEvaluationException() Node5 lwtDev::OutputRankException + OutputRankException() Node1->Node5 Node2 lwtDev::LightweightNNException + LightweightNNException() Node2->Node1 Node3 std::logic_error Node3->Node2 Node4 std::exception Node4->Node3