Halliday & Matthiessen (1999: 255-6):
It would take many pages of discussion to follow through such examples discursively in any detail. Instead we will present one brief example with step-by-step unpacking of all the grammatical metaphors simultaneously, using a form of graphic display (with labelling of grammatical functions) which will give a sense of the overall metaphorical space that may be covered in a single instance of this kind: see Figure 6-2.
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| Figure 6-2 Step by step "unpacking" of metaphorical wording |