Remove the hungry-thirsty rules, keeping the default ones,
by using excise -task,
or re-start Soar and load the default rules.
Now load (source) "ht2.s7", turn
watch the
chunk creation trace. (Note that learning is normally turned on when
Soar starts up, but we turned it off in the ht.s7 files in order to simplify
the model's behaviour earlier.)
Now run the model through the impasse, and compare your trace
with Trace 6.
Then init-soar
and run through the impasse again, and compare your trace
with Trace 7.
You can remove all learnt chunks in order to watch chunks get
learned anew by using the
excise command.