Introduction to Syntactic Structure: Part One

Transcription

1 Introduction to Syntactic Structure: Part One Why do we need syntactic structure? who needs it? for what? How do we find syntactic structure? How do we describe syntactic structure? constituents phrase structure rules

2 How do we understand sentences?

3 Grammar description and explanation of the language structures that are occur not rules in books for people to check whether they are talking properly! non-linguistic grammar rules tend to be simplifications and therefore include shortcuts and mistakes! not rules that tpeople can choose to obey or not the mechanisms by which language units get put together th at all!!

4 Theories should be as simple as possible, but not more so. Albert Einstein i

5 The role of Simplifications... Language is complex: Problems are difficult to avoid Simplifications (even in a good cause) will lead to: RECOGNITION O PROBLEMS CONSISTENCY PROBLEMS EXCEPTION PROBLEMS COVERAGE PROBLEMS

6 A small gnome in the garden wiped Language: beads on a string? his hands

7 A small gnome in the garden wiped This is a bad model because it does not allow us to make any accurate predictions about how we understand d language or how sentences behave. his hands

8 How much does a language user have to remember? How much can a language user remember? Daddy, what did you bring that book that I don t want to be read to out of up for?

9 Daddy, what did you bring that book that I don t want to be read to out of up for? How Anne Salisbury can claim that Pam Dawber s anger at not receiving her share of acclaim for Mork and Mindy s success derives from a fragile ego escapes me.

10 Structure effects I saw the gnome in the garden. What were you doing in the garden? No, I wasn t in the garden, the gnome was. Oh.

11 Structure effects Wanted: cook with spoon for efficient beating.

12 Structure effects The gnome in the garden next door caught a fish in the pond. A fish in the pond was caught by the gnome in the garden next door

13 Structure effects The gnome in the garden next door caught a fish in the pond. A fish in the pond was caught by the gnome in the garden next door

14 Grammar, Syntax and Structure Yousawafilm a You did see a film Which h film did you see?

15 Syntactic ti constituents t sentences are made up of parts, called constituents what are they? how can we find them? what different kinds are there? what maps might be we need to describe them?

16 Grammar: The Rank Scale clauses groups and phrases nominal groups/phrases verbal groups adjectival groups/phrases adverbial groups/phrases prepositional phrases words morphemes are made up of

17 The Rank Scale clauses groups and phrases nominal groups verbal groups adjectival groups adverbial groups Morphology prepositional phrases words morphemes are made up of

18 clauses The Rank Scale Grammar/Syntax groups and phrases nominal groups/phrases verbal groups adjectival groups/phrases adverbial groups/phrases prepositional phrases words morphemes are made up of

19 A Chinese Box representation of grammatical structure: clauses and groups clause A small gnome in the garden wiped his hands. A small gnome in the garden in the garden wiped his hands the garden

20 Names of parts: Rank Units A small gnome in the garden wiped his hands. clause group a small gnome in the group group garden wiped his hands word word word a small gnome phrase in the garden word wiped his word hands a small gnome morphemes word in in group the garden wipe -ed he hand -s morphemes the garden words the garden morphemes

21 Names of parts: Rank Units A small gnome in the garden wiped his hands. clause group a small gnome in the group group garden wiped his hands word word word a small gnome phrase in the garden word wiped his word hands a small gnome morphemes word in in group the garden wipe -ed he hand -s morphemes the garden words the garden morphemes

22 Syntactic Trees clause group group group a small gnome phrase wiped his hands in group the garden

23 Syntactic Trees clause group group group phrase group a small gnome in the garden wiped his hands

24 Syntactic Trees clause group group phrase group group many people will go to the station every morning How do we know precisely which trees are required?

25 Linguistic i analysis DATA Linguistic method

26 Sentence Structure Tests and Probes

27 Types of structure probes : syntactic constituents Expansions and substitutions If you have a sentence: The king of England ate cake then you can pick out constituents by trying to substitute smaller but equivalent units: The king ate cake He ate cake He ate it PRO-FORMS

28 Types of structure probes : semantic constituents these are the parts of a sentence that answer the questions: who? where? when? why? how? to whom?

29 Types of structure probes : syntactic constituents Conjunction/Coordination test if you can replace a unit by that unit and another one of a similar kind, then you have a constituent: The boy chased the dog. The boy chased the dog and the cat. *John rang up his friend and up his mother.

30 Types of structure probes : syntactic constituents Reduction/Ellipsis test If you have a sentence: John won t wash the dishes then you can pick out constituents by seeing what can be left out or ellipsed: He will if you ask him wash the dishes John won t help me with my homework...

31 Movement tests The gnome washed his hands in the pool. In the pool the gnome washed his hands. It was in the pool that the gnome washed his hands. Not: The gnome in the pool washed his hands.

32 Movement tests The gnome washed his hands on Tuesday. On Tuesday the gnome washed his hands. It was on Tuesday that the gnome washed his hands. Not: The gnome on Tuesday washed his hands.

33 Types of structure probes : Grammatical Subjects Subject tests: the Subject and the finite part of the verb agree in grammatical number a tag question always picks out the Subject if you make a passive construction the Subject is always the one to disappear or to be moved to a by phrase

34 Types of structure probes : syntactic constituents Dependency test if some words cannot be removed from a sentence or other unit without taking others out with them then these words are dependent on the others and form part of a larger constituent. the King of England ate cake the King ate cake * of England ate cake

35 Dependency the King ate of England cake

36 Dependency the King ate cake

37 Dependency the King ate

38 Dependency he ate Substitution cake

39 Dependency at work How Anne Salisbury can claim that Pam Dawber s anger at not receiving her share of acclaim for Mork and Mindy s s success derives from a fragile ego escapes me.

40 How can Anne Salisbury claim that escapes me. Pam Dawber s derives anger from at a fragile ego not receiving i acclaim for her share of success Mork and Mindy s

41 The gnome in the garden was sad. The gnome was sad in the garden. In the garden the gnome was sad. Tests: Who was sad was the gnome in the garden. Who was sad in the garden was the gnome.

42 Types of structure probes : syntactic constituents Pseudo-clefts ( wh-cleft ) If you have a sentence: The boy kicked the ball then you can pick out the constituents of the sentence using the pseudocleft construction: what the boy kicked was the ball (the one) who kicked the ball was the boy

43 Circumstance or phrasal verb? They got off the old bus. They ran down the boy. They ran down the lane. Theme predication probe: It was X...

44 Circumstance or phrasal verb? They got off the old bus. It was the old bus that they got off. Theme predication probe: It was X...

45 Circumstance or phrasal verb? They ran down the boy. It was the boy that they ran down. Theme predication probe: It was X...

46 Circumstance or phrasal verb? They ran down the lane. It was the lane that they ran down It was down the lane that they ran * It was down the boy that they ran Theme predication probe: It was X...

47 Tests and Probes semantic unity expansions & substitutions dependencies conjunction & coordination reduction & ellipsis movement pseudo-clefts (wh-clefts) theme predication (it-clefts)

48 The gnome in the garden was sad. semantic unity? expansions & substitutions? dependencies? conjunction & coordination? reduction & ellipsis? movement? pseudo-clefts (wh-clefts)? theme predication (it-clefts)?

49 The gnome in the garden was sad. The giraffe in the field could eat the leaves es in the neighbouring garden. The radio in the car could be heard in the street. t The gnome from the garden is my best friend.

50 Traditional categories Robins Short history of linguistics

51 Two ways of defining word classes by their grammatical form der Angestellte das blaue Flugzeug laufen wir weg by their distribution i i i.e., where they occur in relation to other words morphology syntax

52 Immediate Constituency structure Clauses Groups & Phrases Words

53 Building up a constituent from a word class start with a word class: noun, adjective, verb, etc. and see what we can add to it to get something bigger that does the same kind of job (function) and appears in the same kind of places (form: distribution) the Phrase

54 Building up a constituent from a word class: nouns he [pronoun] John [proper name] The boy [determiner noun] The good boy [determiner adjective noun] The boy in the garden?? the Noun Phrase (NP)

55 Building up a constituent from a word class: verbs ate ate a cake ate a cake in the park quickly ate a cake in the park [V] [V NP] [V NP PP] [Adv V NP PP] the Verb Phrase (VP)

56 Building up a constituent from a word class: prepositions in [preposition] in the garden [preposition??] right in the garden [adv? preposition NP] the Prepositional Phrase (PP)

57 Describing Structure to describe these immediate constituents we use SYNTACTIC TREES

58 children or daughter nodes dominating node NP parent or mother node determiner the adjective good noun boy

59 Another constituent tree VP V NP ate a cake

60 A third constituent tree PP preposition in?np the garden

61 Yet another constituent tree VP V NP PP ate a cake in the park

62 A phrase structure tree for... The boy in the garden??

63 RECURSION NP PP NP det N prep det N I saw the boy in the garden

64 The Sentence Poor John ran away S NP VP AdjP N V AdvP Poor Jh John ran away

65 What do all these trees do? help construct structure...

66 S Attachment NP VP? NP PP NP noun verb det noun prep det noun I saw the gnome in the garden

67 S Attachment NP VP? NP PP noun verb det noun I saw the gnome in the garden

68 S Attachment VP NP NP PP noun verb det noun I saw the gnome in the garden

69 S Attachment VP NP NP PP noun verb det noun I saw the gnome in the garden

70 What do all these trees do? help construct structure... guide interpretation...