diff --git a/contrib/summerschool/foods/CharactersGla.gf b/contrib/summerschool/foods/CharactersGla.gf
new file mode 100644
index 000000000..453741a52
--- /dev/null
+++ b/contrib/summerschool/foods/CharactersGla.gf
@@ -0,0 +1,12 @@
+resource CharactersGla = {
+	
+	--Character classes
+	oper
+		vowel : pattern Str = #("a"|"e"|"i"|"o"|"u"|"�"|"�"|"�"|"�"|"�") ;
+		vowelCap : pattern Str = #("A"|"E"|"I"|"O"|"U"|"�"|"�"|"�"|"�"|"�") ;
+		consonant : pattern Str = #("b"|"c"|"d"|"f"|"g"|"h"|"j"|"k"|"l"|"m"|"n"|"p"|"q"|"r"|"s"|"t"|"v"|"w"|"x"|"z") ;
+		consonantCap : pattern Str = #("B"|"C"|"D"|"F"|"G"|"H"|"J"|"K"|"L"|"M"|"N"|"P"|"Q"|"R"|"S"|"T"|"V"|"W"|"X"|"Z") ;
+		broadVowel : pattern Str = #("a"|"o"|"u"|"�"|"�"|"�") ;
+		slenderVowel : pattern Str = #("e"|"i"|"�"|"�") ;
+	
+}
\ No newline at end of file
diff --git a/contrib/summerschool/foods/FoodsChi.gf b/contrib/summerschool/foods/FoodsChi.gf
new file mode 100644
index 000000000..163aa0eb1
--- /dev/null
+++ b/contrib/summerschool/foods/FoodsChi.gf
@@ -0,0 +1,35 @@
+concrete FoodsChi of Foods = {
+flags coding = utf8 ;
+lincat
+    Comment, Item = Str ;
+    Kind = {s,c : Str} ; 
+    Quality = {s,p : Str} ;
+lin
+    Pred item quality = item ++ "是" ++ quality.s ++ quality.p ;
+    This kind = "这" ++ kind.c ++ kind.s ;
+    That kind = "那" ++ kind.c ++ kind.s ;
+    These kind = "这" ++ "些" ++ kind.s ;
+    Those kind = "那" ++ "些" ++ kind.s ;
+    Mod quality kind = {
+      s = quality.s ++ quality.p ++ kind.s ;
+      c = kind.c
+      } ;
+    Wine  = geKind "酒" ;
+    Pizza = geKind "比 萨 饼" ;
+    Cheese  = geKind "奶 酪" ;
+    Fish  = geKind "鱼" ;
+    Very quality = longQuality ("非 常" ++ quality.s) ;
+    Fresh  = longQuality "新 鲜" ;
+    Warm  = longQuality "温 热" ;
+    Italian  = longQuality "意 大 利 式" ;
+    Expensive  = longQuality "昂 贵" ;
+    Delicious  = longQuality "美 味" ;
+    Boring  = longQuality "难 吃" ;
+oper
+    mkKind : Str -> Str -> {s,c : Str} = \s,c ->
+      {s = s ; c = c} ;
+    geKind : Str -> {s,c : Str} = \s ->
+      mkKind s "个" ;
+    longQuality : Str -> {s,p : Str} = \s ->
+      {s = s ; p = "的"} ;
+}
diff --git a/contrib/summerschool/foods/FoodsGla.gf b/contrib/summerschool/foods/FoodsGla.gf
new file mode 100644
index 000000000..691b26bb8
--- /dev/null
+++ b/contrib/summerschool/foods/FoodsGla.gf
@@ -0,0 +1,66 @@
+concrete FoodsGla of Foods = open MutationsGla, CharactersGla, Prelude in {
+	param Gender = Masc|Fem ;
+	param Number = Sg|Pl ;
+	param Breadth = Broad|Slender|NoBreadth ;
+	param Beginning = Bcgmp|Other ;
+	
+	lincat Comment = Str;
+	lin Pred item quality = "tha" ++ item ++ quality.s!Sg!Unmutated ;
+
+	lincat Item = Str;
+	lin
+		This kind = (addArticleSg kind) ++ "seo" ;
+		That kind = (addArticleSg kind) ++ "sin";
+		These kind = (addArticlePl kind) ++ "seo" ;
+		Those kind = (addArticlePl kind) ++ "sin" ;
+	oper addArticleSg : {s : Number => Mutation => Str; g : Gender} -> Str =
+						  \kind -> case kind.g of { Masc => "an" ++ kind.s!Sg!PrefixT; Fem => "a'" ++ kind.s!Sg!Lenition1DNTLS } ;
+	oper addArticlePl : {s : Number => Mutation => Str; g : Gender} -> Str =
+					    \kind -> "na" ++ kind.s!Pl!PrefixH ;
+	
+	oper Noun : Type = {s : Number => Mutation => Str; g : Gender; pe : Breadth; beginning: Beginning; };
+	lincat Kind = Noun;
+	lin
+		Mod quality kind = {
+			s = table{
+					Sg => table{mutation => kind.s!Sg!mutation ++ case kind.g of {Masc => quality.s!Sg!Unmutated; Fem => quality.s!Sg!Lenition1} };
+					Pl => table{mutation => kind.s!Pl!mutation ++ case kind.pe of {Slender => quality.s!Pl!Lenition1; _ => quality.s!Pl!Unmutated} }
+			};
+			g = kind.g;
+			pe = kind.pe;
+			beginning = kind.beginning
+		} ;
+		Wine = makeNoun "f�on" "f�ontan" Masc ;
+		Cheese = makeNoun "c�ise" "c�isean" Masc ;
+		Fish = makeNoun "iasg" "�isg" Masc ;
+		Pizza = makeNoun "pizza" "pizzathan" Masc ;
+	oper makeNoun : Str -> Str -> Gender -> Noun = \sg,pl,g -> {
+		s = table{Sg => (mutate sg); Pl => (mutate pl)};
+		g = g;
+		pe = pe;
+		beginning = Bcgmp
+	}
+	where {
+		pe : Breadth = case pl of {
+			_ + v@(#broadVowel) + c@(#consonant*) + #consonant => Broad;
+			_ + v@(#slenderVowel) + c@(#consonant*) + #consonant => Slender;
+			_ => NoBreadth
+		}
+	};
+
+	oper Adjective : Type = {s : Number => Mutation => Str; sVery : Number => Str};
+	lincat Quality = Adjective;
+	lin
+		Very quality = {s=table{number => table{_ => quality.sVery!number}}; sVery=quality.sVery } ;
+		Fresh = makeAdjective "�r" "�ra" ;
+		Warm = makeAdjective "bl�th" "bl�tha" ;
+		Italian = makeAdjective "Eadailteach" "Eadailteach" ;
+		Expensive = makeAdjective "daor" "daora" ;
+		Delicious = makeAdjective "blasta" "blasta" ;
+		Boring = makeAdjective "leamh" "leamha" ;
+	oper makeAdjective : Str -> Str -> Adjective =
+		\sg,pl -> {
+					s=table{Sg => (mutate sg); Pl => (mutate pl)};
+					sVery=table{Sg => "gl�"++(lenition1dntls sg); Pl => "gl�"++(lenition1dntls pl)}
+				  } ;
+}
\ No newline at end of file
diff --git a/contrib/summerschool/foods/FoodsOri.gf b/contrib/summerschool/foods/FoodsOri.gf
new file mode 100644
index 000000000..ad4f492f6
--- /dev/null
+++ b/contrib/summerschool/foods/FoodsOri.gf
@@ -0,0 +1,30 @@
+concrete FoodsOri of Foods = {
+
+flags coding = utf8 ;
+
+lincat
+    Comment = Str;
+    Item = Str;
+    Kind = Str;
+    Quality = Str;
+
+lin
+    Pred item quality = item ++ quality ++ "ଅଟେ";
+    This kind = "ଏଇ" ++ kind;
+    That kind = "ସେଇ" ++ kind;
+    These kind = "ଏଇ" ++ kind ++ "ଗୁଡିକ" ;
+    Those kind = "ସେଇ" ++ kind ++ "ଗୁଡିକ" ;
+    Mod quality kind = quality ++ kind;
+    Wine  = "ମଦ";
+    Cheese  = "ଛେନା";
+    Fish  = "ମାଛ";
+    Pizza = "ପିଜଜ଼ା" ;
+    Very quality = "ଅତି" ++ quality;
+    Fresh  = "ତାଜା";
+    Warm  = "ଗରମ";
+    Italian  = "ଇଟାଲି";
+    Expensive  = "ମୁଲ୍ୟବାନ୍";
+    Delicious  = "ସ୍ଵାଦିସ୍ଟ ";
+    Boring  = "ଅରୁଚିକର";
+
+}
diff --git a/contrib/summerschool/foods/MutationsGla.gf b/contrib/summerschool/foods/MutationsGla.gf
new file mode 100644
index 000000000..41eb11006
--- /dev/null
+++ b/contrib/summerschool/foods/MutationsGla.gf
@@ -0,0 +1,53 @@
+resource MutationsGla = open CharactersGla in {
+	param Mutation = Unmutated|Lenition1|Lenition1DNTLS|Lenition2|PrefixT|PrefixH;
+	
+	--Turns a string into a mutation table
+	oper mutate : (_ : Str) -> (Mutation => Str) = \str -> table {
+		Unmutated => str ;
+		Lenition1 => lenition1 str ;
+		Lenition1DNTLS => lenition1dntls str ;
+		Lenition2 => lenition2 str ;
+		PrefixT => prefixT str ;
+		PrefixH => prefixH str
+	};
+
+	--Performs lenition 1: inserts "h" if the word begins with a lenitable character
+	oper lenition1 : Str -> Str = \str -> case str of {
+		start@("p"|"b"|"m"|"f"|"t"|"d"|"c"|"g") + rest => start + "h" + rest ;
+		start@("P"|"B"|"M"|"F"|"T"|"D"|"C"|"G") + rest => start + "h" + rest ;
+		("s"|"S") + ("p"|"t"|"c") + _ => str ; --the sequences "sp", "st", "sc" are never mutated
+		start@("s"|"S") + rest => start + "h" + rest ;
+		_ => str
+	};
+	
+	--Performs lenition 1 with dentals: same as lenition 1 but leaves "d", "t" and "s" unmutated
+	oper lenition1dntls : Str -> Str = \str -> case str of {
+		start@("p"|"b"|"m"|"f"|"c"|"g") + rest => start + "h" + rest ;
+		start@("P"|"B"|"M"|"F"|"C"|"G") + rest => start + "h" + rest ;
+		_ => str
+	};
+
+	--Performs lenition 2: same as lenition 1 with dentals but also changes "s" into "ts"
+	oper lenition2 : Str -> Str = \str -> case str of {
+		start@("p"|"b"|"m"|"f"|"c"|"g") + rest => start + "h" + rest ;
+		start@("P"|"B"|"M"|"F"|"C"|"G") + rest => start + "h" + rest ;
+		("s"|"S") + ("p"|"t"|"c") + _ => str ; --the sequences "sp", "st", "sc" are never mutated
+		start@("s"|"S") + rest => "t-" + start + rest ;
+		_ => str
+	};
+	
+	--Prefixes a "t" to words beginning with a vowel
+	oper prefixT : Str -> Str = \str -> case str of {
+		start@(#vowel) + rest => "t-" + start + rest ;
+		start@(#vowelCap) + rest => "t-" + start + rest ;
+		_ => str
+	};
+
+	--Prefixes a "h" to words beginning with a vowel
+	oper prefixH : Str -> Str = \str -> case str of {
+		start@(#vowel) + rest => "h-" + start + rest ;
+		start@(#vowelCap) + rest => "h-" + start + rest ;
+		_ => str
+	};
+	
+}
\ No newline at end of file