To enter/update/delete or look at an annotation. An annotation is a "comment" associated with a knowledge
node such as an entity type, a database or a sentence type. The Annotation-window contains three listboxes and
an edit field. The Nodes listbox contains knowledge nodes to which annotations can be associated. The Node
type listbox contains the types of knowledge nodes to which annotations can be associated (including the entry
all which refers to all node types). The Annotations listbox contains actual annotations.
The initial selection of the Node type listbox is all. The Nodes and Annotations listboxes are populated according to the Node type listbox.