It highlights how English speakers naturally fill in missing prepositions (like "for") to make sense of ambiguous lists.
Buying three squirrels who happen to be "nuts" (crazy). Action: You are adopting three eccentric pets. Why it’s used buy three squirrels nuts
It’s often used to see if a system can distinguish between plural possessives (squirrels') and plural nouns (squirrels). It highlights how English speakers naturally fill in
Action: You are looking to purchase three biological specimens (which is much darker!). buy three squirrels nuts