Well, I have to be careful, because there are different varieties of both those species, and so for P. cerasus and P. avium there will be more sour types and less sour types, as well as ones of varying sweetness. And so there will be people who eat P. cerasus right off the tree here also. BTW I found that there are a large number of cherry trees sprinkled over those regions, and so some of us would feel right at home there. Most of the Prunus spp. trees are extremely pleasant, especially in spring.

I think that I got a little confused about логика, because there is also логик, logician.