Ambiguity in prepositional phrases

Question

"Nellie washed the dishes in the sink."

This sentence is ambiguous, and the prepositional phrase can be read two ways--either as 'Nellie washed (in the sink) the dishes', in which case it is an adverbial phrase, or 'Nellie washed the dishes (that were in the sink, but not those, say, on the table)', in which case it is an adjectival phrase.

Moving the prepositional phrase doesn't help. If I say "In the sink, Nellie washed the dishes" it sounds as though Nellie is standing in the sink.

Does this show a fundamental problem with English syntax? I'm pretty sure German syntax would deal with this more precisely.

Answer 1

That some sentences are syntactically ambiguous is not a fundamental problem of English syntax. Context and intonation are usually enough to guide hearers in constructing the intended phrase structure (that is, non-ambiguous syntactic structure) of the spoken or written utterance. Such a process is called disambiguation, and we do it all the time. Subconsciously. Instantly.

Besides prepositional phrases being ambiguous between adverbs and noun phrase modifiers, stacking quantifiers (the use of multiple quantifiers) also exhibits syntactic ambiguity.

Consider:

1. Every man loves some woman.

This can be interpreted in two ways, depending on which quantifier ('every' or 'some') is given primary scope. The two interpretations are:

2. Some particular woman is such that every man loves her.
3. Every man is such that he loves some (potentially different) woman.

Given the unlikelihood of interpretation (2), whenever we encounter (1), we usually hear it as meaning (3).

In the case of prepositional phrases, similar clues also exist to help us hear a particular intended reading.

---

A final point about German. According to lore, German philosopher and great-grandfather of modern formal semantics Gottlob Frege actually despised ambiguity and wanted to create a perfect language that was completely free of it. This suggests that German isn't as naturally disambiguated as you think.

Answer 2

It is an ambiguity only of the written representation of the language. In speech, the two meanings would receive different intonation and syntactic micro-pauses.

I can't represent the intonational differences, but the phrasal units would be like this:

Nellie washed ...... the dishes in the sink.  [which dishes]

Nellie washed the dishes.....in the sink.   [where she chose to wash them]

Answer 3

A prepositional phrase can be disambiguated with a second form of paraphrasing. With your sentence, this paraphrasing would generate the following sentence:

"The dishes in the sink were washed by Nellie".

This sentence cannot possibly have the same meaning as the sentence "In the sink, Nellie washed the dishes" (which is another disambiguation), and we have thereby succeeded in eliminating structural ambiguity (also called syntactic ambiguity) in both interpretations of this prepositional phrase.