And this is a podcast episode (from Sporkful) on the same problem:
<a href="http://www.sporkful.com/what-makes-a-sandwich-a-sandwich/" rel="nofollow">http://www.sporkful.com/what-makes-a-sandwich-a-sandwich/</a>
This is the sort of thing that lawyers love to argue over.<p>E.g. is a tomato a fruit or a vegetable? Think you know the answer? The US Supreme Court might disagree with you: <a href="https://en.wikipedia.org/wiki/Nix_v._Hedden" rel="nofollow">https://en.wikipedia.org/wiki/Nix_v._Hedden</a>