I really like your idea and would be very interested in seeing where you go with 

I started on a similar idea thirty years ago and got blank looks from my U of 
Chicago thesis advisers, who told me not to waste my their time.  After all the 
progress which has been made since, it is sad that the low visibility of 
graphical languages means someone may still get the same reaction.  

Let me give you a very small example of what can be done with a graphical 
languages.  For convenience, I will base this on work I have been doing, which 
is primarily in three dimensions.

Take your nouns, which run vertically down the page from the top.  Curl the 
page into a circle, so that the nouns now form a cylinder.  Lay the cylinder on 
its side.  Now, as you move from left to right you are moving forward in the 
time dimension.

Place a rod so it floats in the center of the cylinder.  The rod is composed of 
segments.  Each segment is a verb and can be colored, striped and otherwise 
marked.  Seen in cross-section each segment can be a circle, triangle, 
quadrilateral or other shape.  

Connect each segment via links (lines or smaller rods) to the appropriate 
nouns.  The color and shape of these links can tell you whether the reference 
is to a subject, object, or another category.  In this view the resulting diagram 
is similar to a knobby bicycle wheel with lots of missing spokes.  

This is the basic idea.  Now play with this to see some of the possibilities.  A 
few of the many possibilities:

1) Make the rod another cylinder.  This makes its center hollow so it can be 
filled as required with shapes to denote