Initial commit

grammar.py

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+from vocabulary import starts_with_vowel_sound
+from grammatical_types import (
+    Adjective,
+    Adverb, 
+    DeterminedNounPhrase,
+    Determiner, 
+    IntransitiveVerb,
+    Noun, 
+    NounPhrase,
+    PastTenseTransitiveVerb,
+    PastTenseIntransitiveVerb,
+    PluralNoun,
+    Sentence,
+    TransitiveVerb,
+    VerbPhrase, 
+)
+
+# 3A: LOVE POEM
+
+def pluralize(noun):
+    "Noun -> PluralNoun"
+    assert type(noun) == Noun
+    if noun.endswith("s") or noun.endswith("ch") or noun.endswith("sh") or noun.endswith("x"):
+        return PluralNoun(noun + 'es')
+    else:
+        return PluralNoun(noun + 's')
+
+# 3B: COUPLET
+
+def noun_phrase(adjective, noun):
+    "(Adjective, Noun) -> NounPhrase"
+    #YOUR CODE GOES HERE
+
+    raise NotImplementedError("This function isn't done!")
+
+def determine_noun_phrase(determiner, noun_phrase):
+    "(Determiner, NounPhrase) -> Determined NounPhrase"
+    #YOUR CODE GOES HERE
+
+    raise NotImplementedError("This function isn't done!")
+
+def make_definite(noun_phrase):
+    "NounPhrase -> DeterminedNounPhrase"
+    #YOUR CODE GOES HERE
+
+    raise NotImplementedError("This function isn't done!")
+
+def make_indefinite(noun_phrase):
+    "NounPhrase -> DeterminedNounPhrase"
+    #YOUR CODE GOES HERE
+
+    raise NotImplementedError("This function isn't done!")
+
+# 3C: LIMERICK
+
+def verb_phrase(adverb, verb_phrase):
+    "(Adverb, VerbPhrase) -> VerbPhrase"
+    #YOUR CODE GOES HERE
+
+    raise NotImplementedError("This function isn't done!")
+
+def past_tense_transitive(verb):
+    "TransitiveVerb -> PastTenseTransitiveVerb"
+    #YOUR CODE GOES HERE
+
+    raise NotImplementedError("This function isn't done!")
+
+def past_tense_intransitive(verb):
+    "TransitiveVerb -> PastTenseIntransitiveVerb"
+    #YOUR CODE GOES HERE
+
+    raise NotImplementedError("This function isn't done!")
+
+def verb_phrase_transitive(verb, noun_phrase):
+    "(TransitiveVerb, NounPhrase) -> VerbPhrase"
+    #YOUR CODE GOES HERE
+
+    raise NotImplementedError("This function isn't done!")
+