-<br><b>See Also</b> a sample TUI Script of a
-\ref tui_free_faces "Free Faces quality control" operation.
+In this picture some volume mesh elements have been removed, as
+a result some faces became connected only to one
+volume. i.e. became free.
+
+\sa A sample TUI Script of a \ref tui_free_faces "Free Faces quality control"
+operation.