See BP952 for the version that sorts pictures of Bongard Problems (@miniproblems) instead of @links.
Left examples have the keyword "metameta" on the OEBP.
These are @meta Bongard Problems with at least two layers of nesting.
@Meta Bongard Problems with at least two layers of nesting.
Meta Meta Bongard Problems vs. other Bongard Problems.
Meta Meta Bongard Problems vs. other meta Bongard Problems.
See BP952.
