EVENT STRUCTURE

This is a large metaphorical system.  Event structure includes notions
of attribute, change, causation, action, creation, etc.  In this
metaphorical system, event structure is understood in terms of
force-dynamic systems.

This metaphorical system has two branches.  In one sub-system, event
structure is understood in terms of force-dynamic interaction involving
objects ("the object branch").  In the other sub-system, event
structure is understood in terms of force-dynamic interaction
involving locations ("the location branch").

The organization of the parts of this metaphorical system into files
does not in general reflect real discontinuities in the mappings.  
Rather, divisions have been made in the interest of space and
clarity.