3.4 Blank referents

The referent may be left blank, as in the following conceptual graph:

   [Bus]->(Dest)->[City: Aalborg]

Here, the concept "[Bus]" has no referent. The concept simply means "A bus" or "There is a bus".

Anytime the referent is left blank, it means "There is an X" or simply "An X", where "X" is the concept type.

The whole conceptual graph means

"There is a bus which has a destination (Dest) which is a City, the referent of which is Aalborg."

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