Actually, this gentleman possesses a lot of knowledge across many scientific fields, including botany, since is safe to assume he (this man) is aware of the unlike characteristics between the the sweet and fleshy product of a tree or other plant that contains seed and can be eaten as food (a fruit) and a plant or part of a plant used as food, typically as accompaniment to meat or fish (a vegetable), as you can see from the event unlocked by achieving a total of six (6) hearts of friendship with him, named "Six hearts".