Given the prevalence of the use of rhetorical relations in the generation of text (Itovy, 1989; Moore and Paris, 1988; Scott and Souza, 1990), it is surprising how little work has actually been done on the grammatical realization of these relations. Most systems, based on Mann and Thompson's formulation of Rhetorical Structure Theory (Mann and Thompson, 1988), have adopted simplified solutions to their expression. If, for example, an action, X, and a purpose for that action, Y, must be expressed, a standard form such as "Do X in order to Y" will be generated. In reality, the purpose relation.
