His abandonment of the distinction between attributive and identifying seems harder to motivate, since this cannot in fact be explained as a textual (thematic) system in the way that Fawcett proposes.Halliday & Matthiessen (2004: 229):
Note therefore that Identified–Identifier cannot simply be explained as Given–New in an ‘identifying’ clause; not surprisingly, since the former are experiential functions whereas the latter are textual.
Fawcett incorporates into the “relational: possessive” category, processes of giving and acquiring; reduces the circumstantial to locational processes only; and includes within these, processes of going and sending. As is to be expected, this alternative analysis embodies certain generalisations that are not made in our account of figures, and ignores certain others which are.
Fawcett’s alternative model for relational processes, with its particular features such as treating ‘giving’ and ‘placing’ as agentive possessives and locatives (‘make…have’, ‘make…be at’) rather than as material dispositives, has to be understood in its total explanatory context:
(i) in relation to its repercussions within the transitivity system, both the trinocular perspective on transitivity itself (from above, as generalisations about meaning; from roundabout, its consequences for agnateness, delicacy and the move towards lexis; from below, as regularities in the realisation) and the overall topology of content — transitivity in relation to the semantic construal of causality, agency, disposal, and so on;
(ii) in relation to Fawcett’s architectural design, which differs from ours in having a single system–structure cycle for the two strata of semantics and lexicogrammar (his “syntax”) and then adding a further level of description that is expressed in cognitive terms.
Thus static location in space [enhancement] is construed relationally …
but dynamic motion is construed materially …
static possession [extension] is construed relationally …
but dynamic transfer of possession is construed materially …
and static quality [elaboration] is construed relationally …
but dynamic change in quality is construed materially …
The domain outside this conscious-semiotic [sensing, saying] centre of the ideational universe is then quintessentially either active (doing) or inert (being) …
It follows then … that for us [Fawcett’s (extra-linguistic)] “knowledge of the universe” is construed as meaning rather than as knowledge. This meaning is in the first instance created in language; but we have noted that meaning is created in other semiotic systems as well, both other social-semiotic systems and other semiotic systems such as perception. Our account gives language more of a central integrative rôle in the overall system. It is the one semiotic system which is able to construe meanings from semiotic systems in general.
We contend that the conception of ‘knowledge’ as something that exists independently of language, and may then be coded or made manifest in language, is illusory. All knowledge is constituted in semiotic systems, with language as the most central; and all such representations of knowledge are constructed from language in the first place.
In Fawcett’s model, there is only one system–structure cycle within the content plane: systems are interpreted as the semantics, linked through a “realisational component” to [content] form, which includes items and syntax, the latter being modelled structurally but not systemically; […] in our model there are two system-structure cycles, one in the semantics and one in the lexicogrammar. Terms in semantic systems are realised in semantic structures; and semantic systems and structures are in turn realised in lexicogrammatical ones.
… grammatical metaphor is a central reason in our account for treating axis and stratification as independent dimensions, so that we have both semantic systems and structures and lexicogrammatical systems and structures. Since we [unlike Fawcett] allow for a stratification of content systems into semantics and lexicogrammar, we are in a stronger position to construe knowledge in terms of meaning. That is, the semantics can become more powerful and extensive if the lexicogrammar includes systems.
The stratification of the content plane had immense significance in the evolution of the human species — it is not an exaggeration to say that it turned Homo … into Homo sapiens. It opened up the power of language and in so doing created the modern human brain.
