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I have been using the following definitions, which I am pretty sure I
got from Bill Mann's page in 2003:<br>
<br>
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<p class="MsoNormal"><b style=""><span style="font-size: 11pt;">Relation
<o:p></o:p></span></b></p>
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<p class="MsoNormal"><b style=""><span style="font-size: 11pt;">Constraints
on each pair of N <o:p></o:p></span></b></p>
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<p class="MsoNormal"><b style=""><span style="font-size: 11pt;">Intention
of W <o:p></o:p></span></b></p>
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<p class="MsoNormal"><span style="font-size: 11pt;">Conjunction<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size: 11pt;">The items are
conjoined to form a unit in which each item plays a comparable role<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size: 11pt;">R recognizes
that the linked items are conjoined<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size: 11pt;">Disjunction<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size: 11pt;">An item
presents a (not necessarily exclusive) alternative for the other(s)<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size: 11pt;">R recognizes
that the linked items are alternatives<o:p></o:p></span></p>
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What I like about these definitions is their flexibility: I distinguish
subject matter and presentational uses (for these and for the
multi-nuclear relations of LIST and SEQUENCE). <br>
<br>
I've only now discovered that the current list of definitions on the
RST site no longer includes these -- does anyone know why?<br>
<br>
Best regards,<br>
Gisela<br>
<br>
<pre class="moz-signature" cols="72">Gisela Redeker, Professor
Department of Communication and Information Sciences
Faculty of Arts, University of Groningen
P.O.Box 716, NL-9700 AS Groningen
<a class="moz-txt-link-abbreviated" href="mailto:g.redeker@rug.nl">g.redeker@rug.nl</a> tel: +31-50-3635973 fax: +31-50-3636855
<a class="moz-txt-link-freetext" href="http://www.let.rug.nl/~redeker">http://www.let.rug.nl/~redeker</a></pre>
<br>
<br>
Mick O'Donnell wrote:
<blockquote cite="mid45068A62.2040608@wagsoft.com" type="cite">Hi
Chris, Jelisaveta,
<br>
<br>
The original document describing was RST:
<br>
<br>
William C. Mann and Sandra A. Thompson 1987 "Rhetorical Structure
Theory: A Theory of Text Organization". ISI Technical Report
ISI/RS-87-190.
<br>
(available from: <a class="moz-txt-link-freetext" href="http://www.sfu.ca/rst/05bibliographies/report.html">http://www.sfu.ca/rst/05bibliographies/report.html</a>)
<br>
<br>
It mentions disjunction under multinuclear relations (p73). However,
<br>
from a quick look, I don't think any details are given of this
<br>
relation.
<br>
<br>
Conjunction is not mentioned.
<br>
However, there is a Joint relation (p76), which I think is too weak
<br>
for conjunction: Joint asserts no relation between nuclei, while
<br>
Conjunction should assert some relation amongst the nuclei.
<br>
<br>
Note however that Bill Mann did add Conjunction
<br>
to the relation sets for both classical and extended RST.
<br>
<br>
Mick
<br>
<br>
<br>
<br>
<br>
<br>
<br>
<br>
Jelisaveta Safranj wrote:
<br>
<blockquote type="cite">Dear Chris,
<br>
<br>
I have found something in Discourse Tagging Reference Manual written by
Lynn Carlson and Daniel Marcu.
<br>
<br>
Disjunction is a multinuclear relation whose elements can be listed as
alternatives, either positive or negative.
<br>
<br>
Examples:
<br>
[Call it a fad.] [Or call it the wave of the future.]
<br>
<br>
In the aerobic phase, for instance, lactic acid and lactate are still
produced, [but they are consumed by less active muscles] [or
metabolized in the liver] and so do not accumulate.
<br>
<br>
Conjunction is not mentioned at all.
<br>
<br>
Hope it helps
<br>
Jelisaveta
<br>
<br>
<br>
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</blockquote>
</blockquote>
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