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115d) How and where in the text do reviewers describe the book? Whichlinguistic clues can be identified as correlating with this move?e) How and where in the text do reviewers provide positive and negativecomments about the book? How is positive/negative evaluation provided?Based on the results obtained in this detailed analysis, a model of the corerhetorical moves of BRs is proposed and an inventory of terms employed to conveypositive and negative evaluation is elaborated. The model is later examined againstrandomly selected exemplars of the remaining 120 texts (of the entire corpus of 180texts) as a comparative parameter for the qualitative analysis. This comparison is anattempt to find out to what extent any exemplar of BRs breaks down neatly into thecategories of rhetorical structure I devise in the qualitative analysis.4.2.3 Linguistic clues and systematicityAs discussed in Chapter 2, a basic form of organization pattern in discourse is thatof text structure which refers to the global structure of the form and function of themessage as determined by contextual factors of text production. In the present study, textstructure will be examined in terms of moves (following Swales, 1990) and will beidentified by reference to certain discourse markers that function as linguistic clues thatindicate rhetorical movement in the text.When discussing authors’ comments in medical discourse, Adams-Smith (1984)makes a distinction between objective and evaluative passages in the text and argues thatin objective passages, the author produces ‘objective statement of accepted fact’