Left-sorted examples have the keyword "blackwhite" on the OEBP.

Right-sorted examples have the keyword "blackwhiteinvariant" on the OEBP.

All examples are visual Bongard Problems that allow black to touch the bounding box (keyword @bordercontent).

Left-sorted examples have the keyword "blackwhite" on the OEBP.

Right-sorted examples have the keyword "blackwhiteinvariant" on the OEBP.

All examples are visual Bongard Problems that allow black to touch the bounding box.

Left-sorted examples have the keyword "blackwhite" on the OEBP.

Right-sorted examples have the keyword "blackwhiteinvariant" on the OEBP.

All examples are visual Bongard Problems with world that allows some parts of the image to be filled in black and some parts of the image to be filled in white.

For Bongard Problems with "world" that allows either black background with white shapes or white background with black shapes, switching black and white means switching the colors of the background and foreground. For Bongard Problems that only allow filled-in-shapes and shape outlines, switching black and white means turning filled-in-black shapes into shape outlines and vice versa. For Bongard Problems with shapes that are partially black and partially white, switching black and white means re-coloring those shapes.

Visual Bongard Problems such that if black and white are switched some examples switch sides vs. visual Bongard Problems that would always sort two switched versions the same way.