The Text Base

Halliday & Matthiessen (1999: 12):

The text base provides the resources that enable the speaker to produce contextualised discourse and to guide the listener in interpreting it. These include resources for engendering a wide variety of diverse rhetorical structures, for differentiating among the different values and statuses of the components of the unfolding text, and for ongoingly expanding the text so as to create and maintain the semiotic flow.

Schematic Organisation And Rhetorical Relations

Halliday & Matthiessen (2004: 583-4):

This schematic organisation is contextual: it is projected onto the text from the context … in which it operates. At the same time, the text is organised semantically as a complex of rhetorical relations, and it is these relations that are realised by the combination of conjunction and clause complexing.