Bongard Problems with "world" image of a Bongard Problem (standard form) vs. other Bongard Problems.
COMMENTS
By "standard form" it is meant that there is a thin black line with examples in black-outlined bounding boxes on either side and there is an overall white/blank background.
Bongard Problem solution ideas that sort Bongard Problems with a limited number of specific examples. On the OEBP, Bongard Problems tied to specific examples are called "incarnations" of BP ideas.