** unnumbered without name (l. 32)
** node_prev `nonexistant node in prev for @@top' for `lop' not found 
** `node below node1' doesn't appear in menus
** `node1' is up for `node below node1', but has no menu entry for this node
*** Unknown node in menu entry `node inexistant in menu' (l. 19)
*** Unknown node in menu entry `description' (l. 20)
