I was recently explaining to Someone (he knows who he is) that Captain Picard's directive "Tea, Earl Grey, hot," is not nonsensical simply because no-one would drink Earl Grey cold.
It's clear that he's talking to a computer, and "Earl Grey" is a subset of "tea", and "hot/cold" is a subset of whatever tea flavor it is (Earl Grey).
(My conversation partner muttered something to the effect that I should have gone into programming.)
Anyway, much in the spirit of that exchange, I found this great site. The thing I like most about it is the graphic representation of the different cooking activities and which parts of the food are involved. Very comprehensible!
Cooking for Engineers