ABSTRACT
To most laymen like ourselves, a tomato is just a tomato. We have no knowledge of, nor names for, different sorts of tomatoes. Still, when buying these vegetables, we select our purchases rather carefully, attending to perceptible features such as colour, size and shape, assuming that red tomatoes are usually softer and taste sweeter than green ones. Thus, even although a category such as tomatoes is not divided into clear subcategories, we are aware of correlated features, and thus, of structure, within such basic categories. More general categories, such as vegetables, are also structured, but at least one important difference is that different sorts of vegetables are lexicalized (as beans, tomatoes, cabbage, etc.).
