Conceptual Dependency is a theory of Roger Schank that combines several ideas:

1. Definition of verbs in terms of underlying concepts called primitive acts (14 or so).
2. Deep case relations between primitive acts and objects.
3. Semantic network representation of these structures.

The primitive acts include:

TRANS	Transfer (e.g. ``give'')
INGEST	Ingest into the body
EXPEL	Expel from the body
ATRANS	Abstract transfer (e.g. ownership)
MOVE	Move a body part
GRASP	Grasp an object
PROPEL	Propel (e.g. throw) an object
PTRANS	Physical transfer
MTRANS	Mental transfer
CONC	Conceptualize
ATTEND	Direct sensory organ to observe

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