It was mentioned earlier that an analysis of the functions of the languages used in the community was important. If, as is often the case, the vernacular is restricted in its functions, the number of styles will also be restricted, perhaps to the extent of monostylism as witnessed in Brittany, where young Bretons only have a command of the casual style. Formal situations are usually coped with in French (Dressler and Wodak-Leodolter, 1977). How- ever, as the spectrum of education must go beyond the purely casual level, the problem arises how further levels of style can be introduced. There is a similar problem with respect to the vocabulary if the language is used only in certain domains. If, as in the case of Welsh, the language is spoken primarily in the home in a rural area, the vocabulary will be rich in terms for the domestic and agricultural domains, but lacking in technical, commercial and other such "sophisticated" teminology (Jones, 1973). Here the vocabulary must be extended (cf. Modernization).