So I have written a few sh:values rules that count how many values of
particular property shapes exist in a graph:
[image: Screenshot 2023-04-26 094626.jpg]
These are all powered by simple sh:values statements, like this:
sh:values [
sh:count [
sh:path enterprise_schemas:whatIs ;
] ;
] ;
Now I want to count how many of *those* property shapes are currently
returning "0" as a value -- in this example, the expected count would be 1
-- and return that as the value of an additional property shape,
ex:gapCount.
Can we do this with SHACL? It seems like it should be possible. I've played
around with various combinations of sh:count, sh:alternativePath, and so
on, but haven't hit upon a way that works and would love some advice.
Carl
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