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Component Semantics:
- Open
- Definition: Causes an object to be opened, thereby allowing various actions
- Required slot: object
- Restriction: exactly 1 Portal-Covering
- Required slot: pre-conditions
- Restriction: object is not the object of any
Be-Open state
- Restriction: object is the object of a
Be-Closed state
- Restriction: the object is-part-of a
Enclosure
- Restriction: the Portal of the Enclosure
which the object is-part-of is in a
Be-Blocked state
- Restriction: the location of the object is the
the Portal of the Enclosure that
object is-part-of
- Required slot: post-conditions
- Restriction: object is the object of a
Be-Open state
- Restriction: the Portal of the Enclosure
which the object is-part-of is no longer
in a Be-Blocked state
- Restriction: the location of the object is no longer
the Portal of the Enclosure that
object is-part-of
- Primary slot: agent
- Restriction: causes object to be open
- Primary slot: instrument
- Restriction: Thing used to accomplish the Open
- WordNet 1.6 Synsets: open#6, open_up#3
- WordNet 1.6 Synsets: afford#2, unfasten#2
The Open action puts an object into the
Be-Opened state while at the same time
taking the object out of the Be-Closed
state. The action Close does the exact
opposite.