(For humans to solve.)
Left examples have the keyword "easy" on the OEBP.
Right examples have the keyword "hard."
Left examples are the keyword "easy" on the OEBP.
Right examples are the keyword "hard."
Easy Bongard Problems vs. hard Bongard Problems.
The negation is the keyword "hard."
Relatively easy for humans to solve.
This is the keyword "easy" on the OEBP.