In looking at the hierarchical structure of a composition, it is practical to diagram the natural text in T-units in a three-dimensional matrix based on the three hierarchical relationships between T-units: coordinate, subordinate, and superordinate. In this matrix, a coordinate relationship, which results from conjoining, elaborating, and…

Paragraphs, as well as sentences, can be spoken of as having a deep and a surface structure. The amount of deep structure of the paragraph that is mapped onto the surface paragraph is related to the mode of discourse in which the paragraph is found: the deep structure in scientific paragraphs is relatively uncomplicated with few assumptions made;…

It is proposed that the notion of "address" is neither meaning nor form but that it designates the form which designates meaning. It is therefore in a position underlying both form and meaning. (AMH)