We have never understood why people want anchovies on their pizza. If we wanted a creature which lived in water on our pizza, we'd also put water on our pizza instead of tomato sauce. It seems that a fish would find it more appealing to be in water than in a tomato-based sauce. Actually, we prefer pieces of cow on our pizza. Cow pieces would be more appealing in a tomato-based sauce because of the close relationship between cows and tomatoes. Actually, the relationship is between cows and bushes. Tomatoes do, however, grow on bushes, so the relationship can be extended to tomatoes. For the sake of this discussion, we will contain the relationship to cows and the actual plantlife. A plant is considered to be a bush if it is smaller than a cow. If the plant is larger than a cow, it should be considered to be a tree. This size relation seems fairly straightforward at first, but it can become tricky if you are not careful. The classification of the plant is completely relative to the size of the cow. For example, plant A is a large bush because it is smaller than a large cow (cow A). If we replaced cow A with a small cow (cow B), plant A is a small tree because it is bigger than the cow. See figures 1a and 1b (below). ** plant a> ! ** plant a> ! ! **