...instantiated;

They may, however, be instantiated in a TMR by means of a reification operation (e.g., Beale and Nirenburg, in preparation; Russell and Norvig, 1995), thereby making them stand-alone instances in the TMR. Such reification can also be triggered from the lexicon.

...relation.

There are other reasons for adding redundant links. A slot must have a filler. In fact, our acquisition tool does not retain a slot that has no fillers. As such, we are sometimes forced to introduce a redundant filler just to retain the slot. We would want to retain a slot to fulfill lexical requirements for indicating to the analyzer that it should look for a filler for this slot whenever the concept is instantiated.

...graph.

See any textbook on artificial intelligence for an explanation of And-Or graphs. For example, see Rich and Knight (1991).

...``medical-serve-back-end,''

it may also be noted here that such long names may violate the kind of naming guidelines outlined later in this document.

Kavi Mahesh
Sun Nov 12 14:25:50 MST 1995