Artificial Intelligence.

The links between thoughts could be extended with a new type, for instance: relational facts.
This link-type would be applicate to thoughts which related to each other on a special way.
f.i. thought-x isfather tought-y
thought-y isson thought-z
What is beautiful in that concept is that the user is completely free to make its own relations labels in every possible domain like :
engine-e has_wheels

To make the relation link complete, it should be capable to have a new feature (array) where you can put some additional attributes like 4 (four wheels) and methods (script-code function(x,y,z)).
Thus the relation should be object-oriented.

The next characteristic is a table with rules on which the relation objects can rely on.
You could say IF thought-x(id) isfather tought-y(id) and thought-y(id) isson thought-z(id) THEN thougt-x(id) ismarried thought-z. Where id is the id number in the sql tabel.
On the engine thought you could say: IF engine-e haswheels(2) THEN is_bicycle.
The rules could be sequel statements imbedded in the rules-tabel which would be generated from the user-interface (that’s the more difficult part, but that’s doable).

Last but not least: The Goal tabel.
Here comes all the results-rows generated from the rule sequel statement.
These results can then be used as new thoughts. (ismarried -> thought married, isbicycle -> thought bicycle)

On this way you’r just develop a self-learning a.i. system !.