Dear Jess users,
I am still learning the ropes, and cannot find an answer to the following
question either online or in the 'Jess in action' book. Is there a way to
match facts in a LHS based on the presence of a slot?

For example, I have two templates:

(deftemplate A (slot score))
(deftemplate B (slot score))

I would like my rule to be triggered if any fact (either from template A,
B, or others) have a 'score' slot with a specific value. For now I can do
it by manually adding references to A and B in the LHS, but this will not
scale well. I'm looking for a solution that can just work on any fact,
regardless of the template they are defined from.


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