Friday, 27 August 2021

Applying Fawcett's Realisation Operations

Fawcett (2010: 281-2):
The specification of the realisation operations that follows is essentially the same as that given in Section 9.2.1 of Chapter 9, the difference being that this list additionally identifies the type of relationship that corresponds to the operation. In their typical order of application, the major realisation operations are:
1 Insert a unit (e.g., "ngp") into the structure to 'fill' (or 'function at') an element or Participant Role (e.g., "cv") — so introducing to the structure the relationship of filling. (The topmost clause in a text-sentence fills the 'Sentence'.)

2 Locate an element (e.g., "S") at a given place in a unit — so introducing the relationship of componence.

3 Insert an element or Participant Role to be conflated with an existing element, i.e., to be located immediately after it and to be at the same place (e.g., "S/Ag") — so introducing the relationship of conflation.

4 Expound an element by an item — so introducing the relationship of exponence.

5 Re-set the preferences (i.e., the percentage probabilities on features in certain specified systems), including the preselection of features by the use of 100% and 0% probabilities — these probabilities being reset to their original percentages after the next traversal of the network.

6 Re-enter the system network at a stated feature — so possibly also introducing the recursion of co-ordination, embedding or reiteration.
The result of applying Operation 6 (and so in turn Operation 1) is to introduce to the structure either a single unit or two or more co-ordinated units. In either case the resulting structure may additionally involve the addition of more layers of unit, including the embedding of a unit inside another unit of the same class — depending on what choices have been made in the system network.


Blogger Comments:

These realisation operations can be tested for the clause Blessed are the meek.

  1. Insert nominal group into clause structure to fill Subject
  2. Locate Subject in final location of clause
  3. Insert Affected (Medium) to be conflated with Subject
  4. Expound the Head by an item: meek
  5. Reset percentage probabilities (not provided by Fawcett)
  6. Re-enter system network at stated feature (neither provided by Fawcett).
By this description, the nominal group is already structured before it is inserted into a clause that is already structured and includes a Subject. After one pass through an imaginary system network, all that is generated is the one item meek expounding the Head of a nominal group that fills Subject/Affected. In SFL Theory, in contrast, one pass through the system network of a clause specifies all the elements of a clause, not just one element.

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