lecture 6 code

lectures/lecture06/Foods.gf

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+-- (c) 2009 Aarne Ranta under LGPL
+-- in https://github.com/GrammaticalFramework/gf-contrib/blob/master/foods/Foods.gf
+--
+-- modified for the Computational Syntax course in 2021
+
+abstract Foods = {
+
+  flags startcat = Comment ;
+  
+  cat
+    Comment ;  -- this Italian pizza is very warm
+    Item ;     -- this Italian pizza
+    Kind ;     -- Italian pizza
+    Quality ;  -- very warm
+    
+  fun
+    Pred : Item -> Quality -> Comment ;       -- (this pizza) is (very warm)
+    PredNeg : Item -> Quality -> Comment ;    -- (this pizza) is not (very warm)
+    This, That, These, Those : Kind -> Item ; -- this|that|these|those (pizza|pizzas) 
+    Mod : Quality -> Kind -> Kind ;           -- (Italian) (pizza)
+    Very : Quality -> Quality ;               -- very (Italian)
+
+    Wine, SparklingWine, Cheese, Fish, Pizza : Kind ;
+
+    Fresh, Warm, Italian, Expensive, Delicious, Boring : Quality ;
+}

lectures/lecture06/FoodsEng.gf

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+concrete FoodsEng of Foods = open ParadigmsEng, SyntaxEng, LexiconEng in {
+  lincat
+    Quality = AP;
+    Kind = CN;
+    Item = NP ;
+    Comment = S ;
+
+  lin 
+    Pred item quality = mkS presentTense positivePol (mkCl item quality);
+    PredNeg item quality = mkS presentTense negativePol (mkCl item quality);
+    That kind = mkNP that_Det kind ;
+    Those kind = mkNP those_Det kind ;
+    These kind = mkNP these_Det kind ;
+    This kind = mkNP this_Det kind ;
+    Mod quality kind = mkCN quality kind ;
+    Very quality = mkAP very_AdA quality ; 
+
+    Wine = mkCN wine_N; 
+    SparklingWine = mkCN (mkA "sparkling") wine_N ; 
+    Cheese = mkCN cheese_N ; 
+    Fish = mkCN fish_N ; 
+    Pizza = mkCN (mkN "pizza") ; 
+
+    Fresh = mkAP (mkA "fresh");
+    Warm = mkAP warm_A; 
+    Italian = mkAP (mkA "Italian");
+    Expensive = mkAP (mkA "expensive");
+    Delicious = mkAP (mkA "delicious");
+    Boring = mkAP (mkA "boring");
+
+}

lectures/lecture06/FoodsIta.gf

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+concrete FoodsIta of Foods = open ParadigmsIta, SyntaxIta, LexiconIta in {
+  lincat
+    Quality = AP;
+    Kind = CN;
+    Item = NP ;
+    Comment = S ;
+
+  lin 
+    Pred item quality = mkS presentTense positivePol (mkCl item quality);
+    PredNeg item quality = mkS presentTense negativePol (mkCl item quality);
+    That kind = mkNP that_Det kind ;
+    Those kind = mkNP those_Det kind ;
+    These kind = mkNP these_Det kind ;
+    This kind = mkNP this_Det kind ;
+    Mod quality kind = mkCN quality kind ;
+    Very quality = mkAP very_AdA quality ; 
+
+    Wine = mkCN wine_N; 
+    SparklingWine = mkCN (mkA "effervescente") wine_N ; 
+    Cheese = mkCN cheese_N ; 
+    Fish = mkCN fish_N ; 
+    Pizza = mkCN (mkN "pizza") ; 
+
+    Fresh = mkAP (mkA "fresco");
+    Warm = mkAP warm_A; 
+    Italian = mkAP (mkA "Italiano");
+    Expensive = mkAP (mkA "caro");
+    Delicious = mkAP (mkA "delizioso");
+    Boring = mkAP (mkA "noioso");
+
+}

lectures/lecture06/comments.py

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+import pgf
+
+grammar = pgf.readPGF("Foods.pgf")
+parse_lang = grammar.languages["FoodsEng"]
+
+with open("data.csv") as data:
+    lines = data.readlines()
+
+for line in lines:
+    [polarity, kind, quality] = line.split(",")
+    k = [e for (_,e) in parse_lang.parse(kind, cat=pgf.readType("Kind"))][0]
+    q = [e for (_,e) in parse_lang.parse(quality, cat=pgf.readType("Quality"))][0]
+    expr_string = "{} (This ({})) ({})".format("Pred" if polarity == "+" else "PredNeg", k, q)
+    print(expr_string)
+    expr = pgf.readExpr(expr_string)
+
+    for lin_lang in grammar.languages.values():
+        print(lin_lang.linearize(expr))
+    print()

lectures/lecture06/data.csv

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++,boring cheese,expensive
++,expensive wine,very boring
+-,pizza,Italian
++,fish,delicious