I'm surprised it even knew what papaya was. I've been asked about what the 'tiny purple cabbage' is when buying radicchio before.  I've been asked a lot of things when buying radicchio before, actually.  I think I've even mentioned it in another comment here.  I need to stop buying radicchio when there are fatshiers around.  But, then... I'd rarely get to enjoy my radicchio. Also, that paragraph is probably the most times I will ever type radicchio in my life.