How rude, what do our bathing habits have to do with this? ;-)

But, fair point. The gist I was trying to get across is that I don't even know what a plant smells like to you, and you don't know what a plant smells like to me. Those aren't comparable with any objective data. We make guesses, and we try to get close with our descriptions, which are in words. That's the best we can do and we share our senses. Asking more from computers seems overly picky to me.