Examples of NLGElement

simplenlg.framework.NLGElement

NLGElement is the base class that all elements extend from. This is abstract and cannot therefore be instantiated itself. The additional element classes should be used to correctly identify the type of element required.

Realisation in SimpleNLG revolves around a tree structure. Each node in the tree is represented by a NLGElement, which in turn may have child nodes. The job of the processors is to replace various types of elements with other elements. The eventual goal, once all the processors have been run, is to produce a single string element representing the final realisation.

The features are stored in a Map of String (the feature name) and Object (the value of the feature).
@author D. Westwater, University of Aberdeen. @version 4.0

Examples of simplenlg.framework.NLGElement

  public void testHerLover() {
    this.phraseFactory.setLexicon(this.lexicon);
    this.realiser.setLexicon(this.lexicon);
    
    // Create the pronoun 'she'
    NLGElement she = phraseFactory.createWord("she",LexicalCategory.PRONOUN);


    // Set possessive on the pronoun to make it 'her'
    she.setFeature(Feature.POSSESSIVE, true);


    // Create a noun phrase with the subject lover and the determiner
    // as she
    PhraseElement herLover = phraseFactory.createNounPhrase(she,"lover");


    // Create a clause to say 'he be her lover'
    PhraseElement clause = phraseFactory.createClause("he", "be", herLover);


    // Add the cue phrase need the comma as orthography
    // currently doesn't handle this.
    // This could be expanded to be a noun phrase with determiner
    // 'two' and noun 'week', set to plural and with a premodifier of
    // 'after'
    clause.setFeature(Feature.CUE_PHRASE, "after two weeks,");


    // Add the 'for a fortnight' as a post modifier. Alternatively
    // this could be added as a prepositional phrase 'for' with a
    // complement of a noun phrase ('a' 'fortnight')
    clause.addPostModifier("for a fortnight");


    // Set 'be' to 'was' as past tense
    clause.setFeature(Feature.TENSE,Tense.PAST);


    // Add the clause to a sentence.
    DocumentElement sentence1 = docFactory.createSentence(clause);


    // Realise the sentence
    NLGElement realised = this.realiser.realise(sentence1);


    // Retrieve the realisation and dump it to the console
//    System.out.println(realised.getRealisation());     
    Assert.assertEquals("After two weeks, he was her lover for a fortnight.",
        realised.getRealisation());
  }

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Examples of simplenlg.framework.NLGElement

    this.woman.clearComplements();


    CoordinatedPhraseElement cnp1 = new CoordinatedPhraseElement(this.dog,
        this.woman);
    cnp1.setFeature(Feature.RAISE_SPECIFIER, true);
    NLGElement realised = this.realiser.realise(cnp1);
    Assert.assertEquals("the dog and woman", realised.getRealisation());


    this.dog.addComplement(this.onTheRock);
    this.woman.addComplement(this.behindTheCurtain);


    CoordinatedPhraseElement cnp2 = new CoordinatedPhraseElement(this.dog,
        this.woman);


    this.woman.setFeature(InternalFeature.RAISED, false);
    Assert.assertEquals(
        "the dog on the rock and the woman behind the curtain", //$NON-NLS-1$
        this.realiser.realise(cnp2).getRealisation());


    // complementised coordinates + outer pp modifier
    cnp2.addPostModifier(this.inTheRoom);
    Assert
        .assertEquals(
            "the dog on the rock and the woman behind the curtain in the room", //$NON-NLS-1$
            this.realiser.realise(cnp2).getRealisation());


    // set the specifier for this cnp; should unset specifiers for all inner
    // coordinates
    NLGElement every = this.phraseFactory.createWord(
        "every", LexicalCategory.DETERMINER); //$NON-NLS-1$


    cnp2.setFeature(InternalFeature.SPECIFIER, every);


    Assert

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Examples of simplenlg.framework.NLGElement

  @Test
  public void testHerLovers() {
    this.phraseFactory.setLexicon(this.lexicon);


    // Create the pronoun 'she'
    NLGElement she = phraseFactory.createWord("she",LexicalCategory.PRONOUN);


    // Set possessive on the pronoun to make it 'her'
    she.setFeature(Feature.POSSESSIVE, true);


    // Create a noun phrase with the subject lover and the determiner
    // as she
    PhraseElement herLover = phraseFactory.createNounPhrase(she,"lover");
    herLover.setPlural(true);


    // Create the pronoun 'he'
    NLGElement he = phraseFactory.createNounPhrase(LexicalCategory.PRONOUN,"he");
    he.setPlural(true);


    // Create a clause to say 'they be her lovers'
    PhraseElement clause = phraseFactory.createClause(he, "be", herLover);
    clause.setFeature(Feature.POSSESSIVE, true);


    // Add the cue phrase need the comma as orthography
    // currently doesn't handle this.
    // This could be expanded to be a noun phrase with determiner
    // 'two' and noun 'week', set to plural and with a premodifier of
    // 'after'
    clause.setFeature(Feature.CUE_PHRASE, "after two weeks,");


    // Add the 'for a fortnight' as a post modifier. Alternatively
    // this could be added as a prepositional phrase 'for' with a
    // complement of a noun phrase ('a' 'fortnight')
    clause.addPostModifier("for a fortnight");


    // Set 'be' to 'was' as past tense
    clause.setFeature(Feature.TENSE,Tense.PAST);
    
    // Add the clause to a sentence.
    DocumentElement sentence1 = docFactory.createSentence(clause);


    // Realise the sentence
    NLGElement realised = this.realiser.realise(sentence1);


    // Retrieve the realisation and dump it to the console
//    System.out.println(realised.getRealisation()); 


    Assert.assertEquals("After two weeks, they were her lovers for a fortnight.", //$NON-NLS-1$
        realised.getRealisation());
  }

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Examples of simplenlg.framework.NLGElement

    PhraseElement theHouse = phraseFactory.createNounPhrase("the", "house");
    theHouse.addComplement(born);


    PhraseElement clause = phraseFactory.createClause(theHouse, "be", phraseFactory.createPrepositionPhrase("in", "Edinburgh"));
    DocumentElement sentence = docFactory.createSentence(clause);
    NLGElement realised = realiser.realise(sentence);
//    System.out.println(realised.getRealisation()); 


    // Retrieve the realisation and dump it to the console
    Assert.assertEquals("The house which Dave Bus was born in is in Edinburgh.",
        realised.getRealisation());
  }

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Examples of simplenlg.framework.NLGElement

   */
  @Test
  public void testDaveAndAlbertsHouse() {
    this.phraseFactory.setLexicon(this.lexicon);


    NLGElement dave = phraseFactory.createWord("Dave Bus", LexicalCategory.NOUN);
    NLGElement albert = phraseFactory.createWord("Albert", LexicalCategory.NOUN);
    
    CoordinatedPhraseElement coord1 = new CoordinatedPhraseElement(
        dave, albert);
    
    PhraseElement born = phraseFactory.createClause(coord1, "be", "born");
    born.setFeature(Feature.TENSE,Tense.PAST);
    born.addPostModifier("in");
    born.setFeature(Feature.COMPLEMENTISER, "which");


    PhraseElement theHouse = phraseFactory.createNounPhrase("the", "house");
    theHouse.addComplement(born);


    PhraseElement clause = phraseFactory.createClause(theHouse, "be", phraseFactory.createPrepositionPhrase("in", "Edinburgh"));
    DocumentElement sentence = docFactory.createSentence(clause);
    
    NLGElement realised = realiser.realise(sentence);
//    System.out.println(realised.getRealisation()); 


    // Retrieve the realisation and dump it to the console
    Assert.assertEquals("The house which Dave Bus and Albert were born in is in Edinburgh.",
        realised.getRealisation());
  }

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Examples of simplenlg.framework.NLGElement

    outer.setFeature(Feature.PROGRESSIVE,true);
    
    //Outer clause postmodifier would be 'tomorrow'
    outer.addPostModifier("tomorrow");
    DocumentElement sentence = docFactory.createSentence(outer);
    NLGElement realised = realiser.realise(sentence);
//    System.out.println(realised.getRealisation()); 


    // Retrieve the realisation and dump it to the console
    Assert.assertEquals("The engineer whom I am making sentence for will be going to holidays tomorrow.",
        realised.getRealisation());
  }

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Examples of simplenlg.framework.NLGElement

    
    outer.setFeature(Feature.PASSIVE, true);
    outer.setFeature(Feature.PERFECT, true);
    
    DocumentElement sentence = docFactory.createSentence(outer);
    NLGElement realised = realiser.realise(sentence);
//    System.out.println(realised.getRealisation()); 


    // Retrieve the realisation and dump it to the console
    Assert.assertEquals("The house where I played poker has been abandoned since 1986.",
        realised.getRealisation());
  }

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Examples of simplenlg.framework.NLGElement

  
  @Test
  public void testMayonnaise() {
    this.phraseFactory.setLexicon(this.lexicon);


    NLGElement sandwich = phraseFactory.createNounPhrase(LexicalCategory.NOUN, "sandwich");
    sandwich.setPlural(true);
    // 
    PhraseElement first = phraseFactory.createClause("I", "make", sandwich);
    first.setFeature(Feature.TENSE,Tense.PAST);
    first.setFeature(Feature.PROGRESSIVE,true);
    first.setPlural(false);
    
    PhraseElement second = phraseFactory.createClause("the mayonnaise", "run out");
    second.setFeature(Feature.TENSE,Tense.PAST);
    // 
    second.setFeature(Feature.COMPLEMENTISER, "when");
    
    first.addComplement(second);
    
    DocumentElement sentence = docFactory.createSentence(first);
    NLGElement realised = realiser.realise(sentence);
//    System.out.println(realised.getRealisation()); 


    // Retrieve the realisation and dump it to the console
    Assert.assertEquals("I was making sandwiches when the mayonnaise ran out.",
        realised.getRealisation());
  }

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Examples of simplenlg.framework.NLGElement

  public void testCoordinationSameVP() {
    List<NLGElement> elements = Arrays.asList((NLGElement) this.s3,
        (NLGElement) this.s4);
    List<NLGElement> result = this.coord.apply(elements);
    Assert.assertTrue(result.size() == 1); // should only be one sentence
    NLGElement aggregated = result.get(0);
    Assert.assertEquals(
        "the woman and the man kick the dog behind the curtain", //$NON-NLS-1$
        this.realiser.realise(aggregated).getRealisation());
  }

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Examples of simplenlg.framework.NLGElement

        .createAdverbPhrase("however"));
    List<NLGElement> elements = Arrays.asList((NLGElement) this.s3,
        (NLGElement) this.s4);
    List<NLGElement> result = this.coord.apply(elements);
    Assert.assertTrue(result.size() == 1); // should only be one sentence
    NLGElement aggregated = result.get(0);
    Assert
        .assertEquals(
            "however the woman and the man kick the dog behind the curtain", //$NON-NLS-1$
            this.realiser.realise(aggregated).getRealisation());
  }

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