[Corpora-List] Subcat Questions

Thu Jun 19 00:52:26 UTC 2003

Hi Peetm,

After reading your last message, I tried to register for your 'CL forum' at www.clg.ox.ac.uk.  I was told that I couldn't however, because I have "banned" email address (Yahoo).

That is annoying.

Joe

peetm <peet.morris at comlab.ox.ac.uk> wrote:

Just want to say a MASSIVE and heartfelt 'thanks' to everyone that responded
to my plea earlier today! You guys/gals/profs/... are just so helpful (fab
even!) - thank you very very much indeed. I can now make some progress!

Just wish you were all a little happier about signing up to our 'CL Forums'
on www.clg.ox.ac.uk (we really don't bite) - makes asking/chatting/learning
via majordomo look, um, a little outdated (in my humble opinion anyway).

Thanks again,

peetm

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-----Original Message-----
From: owner-corpora at lists.uib.no [mailto:owner-corpora at lists.uib.no] On
Behalf Of Chris Brew
Sent: 18 June 2003 17:59
To: peetm
Cc: corpora at uib.no
Subject: Re: [Corpora-List] Subcat Questions

On Wed, Jun 18, 2003 at 03:19:06PM +0100, peetm wrote:
>
> Sorry, if this would have been better asked elsewhere - but I thought I'd
> give it a go here.
>
> Subcategorisation Frames - can anyone point me a 'The Dummy's Guide to' -
or
> provide an explanation of them, which contains only plain and simple
English
> please?
>

OK I'll try. If this is too simple, sorry. If too complex,
ask. Subcategorization frames are a component of a system of ideas
designed to describe verbs in such a way as to bring out interesting
commonalities. They are based on notions such as
transitive/intransitive that you may have been taught at school, but
go further.

1) Some verbs must (or nearly must) be intransitive

John faints

we might say the subcategorization frame for this is

np _

where np means noun phrase. The np is the only thing
needed to fill in all the crucial roles of the event
of fainting. In predicate calculus one might write

faints(john)

2) Other verbs must (or nearly must) be transitive

John likes pizza
(The old men) like (the dark green trees)

the brackets mark the phrases. Linguists
have decided for independent reasons that the
phrases "the old men" "the dark green trees" can
function in the same way as the individual words
"John" and "pizza". If this is news to you, you
probably want to read the first chapter of a good
introduction to linguistics.

the frame for both "likes" sentences would be

np _ np

If you say just "John likes" it feels as if something
has been left out. So there are two obligatory things (complements)
that
needed to be added to complete "likes". In predicate
calculus one might write

likes(john, pizza)

3) Some verbs can be either transitive or intransitive

John moves

np _

John moves the books

np _ pp

3) Some verbs are yet more complicated

John gives Mary (the books)
np _ np np

John gives (the books) (to Mary)

np _ np pp

(here pp is prepositional phrase, another kind of phrase,
since "to" is a preposition)

John promises Mary (the books)
np _ np np

John promises Mary (that he will return the books)
np _ np s

(Here s stands for sentence. Quite why "that he will
return the books" should be a sentence is beyond the
current scope, but this is broadly accepted)

4) There don't seem to be frames with more than four
elements, and the only common one with that many is

John bet Mary (half a crown) (that he would return the books)

np _ np np s

5) Arguments and adjuncts.
For purposes of counting, we don't include things that
are inessential to the meaning of the verb, so

John likes pizza (on Tuesdays)

is given the frame

np _ np

and nobody worries about the "on Tuesdays". The reason is (loosely)
that "on Tuesdays" could be added to almost any sentence, and so
shouldn't count as part of the description of the verb. Things that
are part of the frame get called "arguments" and things that are not
get called "adjuncts". There is much debate about this distinction,
from discussion of whether a particular thing is better analysed as
argument or adjunct, through studies of whether machines (or indeed
humans) can reliably distinguish arguments from adjuncts to
philosophical diatribes on whether such a distinction is meaningful in
the first place. If this part strikes you as flaky, you're in very
good company. To really understand the motivations behind this you
probably need a whole course in linguistics.

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