Introduction
To call a sequence of sentences a ‘text' is to imply that the sentences display some kind of mutual dependence: they are not occurring at random.
Sometimes the internal structure of a “text” is immediately apparent, as in the headings of a “restaurant menu”: sometimes it has to be carefully demonstrative, as in the network of relationships that enter into a literary work.
In all cases, the task of textual analysis is to identify the linguistic features that cause the sentence sequence to ‘cohere'- something that happens whenever the interpretation of one future is dependent upon anther elsewhere in the sequence. The ties that bind a text together are often referred to under the heading of “cohesion”.(after M..A.K. Halliday & R Hasan, 1976[1]).