It's well known that generative AI cannot fucking spell. It doesn't know how to because it wasn't programmed with actual logic. It's trained to find patterns and fill results with things that match the pattern. So it somehow deduced "um" and "fruit" both needed to be in the results and searched for that, but then it doesn't know what actual fruits are and it doesn't actually know how to spell so when a result turned up "coconut" it couldn't tell it didn't end in "um".

Edit: I went and tested it with copilot. oddly enough it could do the spelling with fruits but NOT with prime numbers. It wasn't just a list of all primes, it just couldn't spell numbers.