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6 - Structural disambiguation

Published online by Cambridge University Press:  18 December 2009

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Summary

Introduction

In this chapter, I discuss the problem of syntactic, or structural, disambiguation, which was first introduced in section 1.1.3. I will provide the background for the discussion in chapter 7 of the Semantic Enquiry Desk, a structural disambiguator that works with Absity and Polaroid Words.

Types of structural ambiguity

Structural disambiguation is necessary whenever a sentence has more than one possible parse. There are many classes of structurally ambiguous sentence; below I show some of the more common, but do not attempt to produce an exhaustive list. Included in the list are some local ambiguities (see section 1.1.3) that people can be garden-pathed by.

I will use two methods of demonstrating structural ambiguity. In some cases, I will give one sentence and show its several parses; in others, I will give two sentences such that each has a different preferred parse but each could clearly also have the structure of the other. For simplicity, when I show a parse, I will often show it only for the part of the sentence that contains the ambiguity; pseudoprepositions (see section 3.4) are not usually inserted, except where necessary to make a point.

Attachment problems

The first class of structural ambiguity is that of ATTACHMENT AMBIGUITY: there being more than one node to which a particular syntactic constituent may legally be attached. Attachment problems are mostly problems of MODIFIER PLACEMENT. The most common example is that of a prepositional phrase that may either modify a verb (i.e., be a case-slot filler) or an immediately preceding noun phrase. For example:

(6-1) Ross wanted to phone the man with the limp.

(6-2) Ross wanted to wash the dog with Hoary MarmotTM brand pet shampoo.

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Publisher: Cambridge University Press
Print publication year: 1987

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  • Structural disambiguation
  • Graeme Hirst
  • Book: Semantic Interpretation and the Resolution of Ambiguity
  • Online publication: 18 December 2009
  • Chapter DOI: https://doi.org/10.1017/CBO9780511554346.008
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  • Structural disambiguation
  • Graeme Hirst
  • Book: Semantic Interpretation and the Resolution of Ambiguity
  • Online publication: 18 December 2009
  • Chapter DOI: https://doi.org/10.1017/CBO9780511554346.008
Available formats
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Save book to Google Drive

To save content items to your account, please confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your account. Find out more about saving content to Google Drive.

  • Structural disambiguation
  • Graeme Hirst
  • Book: Semantic Interpretation and the Resolution of Ambiguity
  • Online publication: 18 December 2009
  • Chapter DOI: https://doi.org/10.1017/CBO9780511554346.008
Available formats
×