The repository is filled by "nt:folder" nodes. The nodes are placed in a multilayer tree.
root
folder1 (nt:folder)
folder2 (nt:folder)
folder3 (nt:folder) // This node we want to find
folder4 (nt:folder) // This node is not child but a descendant of '/folder1/folder2/'.
folder5 (nt:folder) // This node we want to find