Martin (1992: 451-2):
In order to simplify the interpretation of New presented here, only the minimal domain of the New will be considered; this will be taken as the highest ranking clause constituent (usually a ranking group or phrase) the tonic syllable falls on the final salient syllable of. This principle determines the following minimal News for [6:38], which can be contrasted with the selections of marked and unmarked Topical Theme in the right-hand column.
minimal new in [6:38] unmarked topical theme in [6.38] the only real accident driver (6) ‘ve ever had friend (3) in fog and ice mini (2) a big truck…on the side of the road accident (3) about three feet there (2) away fog very thick it [e] a mini about twelve cars into this truck the mini the offside with its nearside wing I marked topical theme in [6.38] my when I came along completely blocked unfortunately a four wheel skid up to this mini that to deal into the mini sideways on into me a friend of ours along the lot into each one sideways in daylight the fog needless to say fog great…now yes know keep happening…in fog allright yes yes no-one injured
Blogger Comment:
For comparison, presented below are the culminations of New information as given in Halliday (1985: 60), alongside the actual topical Themes — including the one genuine marked topical Theme (overlooked by Martin). Instances where the culmination of New coincides with the Theme are indicated by colour.
culmination of new
in [6:38]
|
topical
theme in [6.38]
|
accident
|
the only real accident
I’ve ever
|
had
|
|
ice
|
|
truck
|
there
|
road
|
|
feet
|
|
(a)way
|
|
thick
|
it
|
mini
|
a mini
|
truck
|
|
mini
|
the mini
|
offside
|
|
wing
|
|
it
|
|
I | |
my | |
blocked
|
|
(un)fortunately
|
I
|
skid
|
|
mini
|
|
that
|
at that time (marked)
|
deal
|
how
|
mini
|
I
|
on
|
you
|
me
|
about twelve cars
|
ours
|
a friend of ours
|
(a)long
|
|
lot
|
he
|
one
|
he
|
sideways
|
|
daylight
|
this
|
fog
|
|
say
|
I
|
fog
|
|
great
|
|
now
|
|
yes
|
|
know
|
I
|
happening
|
they
|
fog
|
|
right
|
you
|
this
|
|
yes
|
|
yes
|
|
injured
|
there
|