diff --git a/lectures/lecture-02/Intro.gf b/lectures/lecture-02/Intro.gf
new file mode 100644
index 0000000..47a2ce6
--- /dev/null
+++ b/lectures/lecture-02/Intro.gf
@@ -0,0 +1,30 @@
+abstract Intro = {
+
+cat
+  S ;
+  NP ;
+  VP ;
+  CN ;
+  AP ;
+  Det ;
+  Pron ;
+  N ;
+  A ;
+  V2 ;
+
+fun
+  PredVP : NP -> VP -> S ;
+  ComplV2 : V2 -> NP -> VP ;
+  DetCN : Det -> CN -> NP ;
+  AdjCN : AP -> CN -> CN ;
+  UseN : N -> CN ;
+  UseA : A -> AP ;
+  UsePron : Pron -> NP ;
+
+  the_Det : Det ;
+  black_A : A ;
+  cat_N : N ;
+  see_V2 : V2 ;
+  we_Pron : Pron ;
+
+}
\ No newline at end of file
diff --git a/lectures/lecture-02/IntroEng.gf b/lectures/lecture-02/IntroEng.gf
new file mode 100644
index 0000000..759ff24
--- /dev/null
+++ b/lectures/lecture-02/IntroEng.gf
@@ -0,0 +1,30 @@
+concrete IntroEng of Intro = {
+
+lincat
+  S = Str ;
+  NP = Str ;
+  VP = Str ;
+  CN = Str ;
+  AP = Str ;
+  Det = Str ;
+  Pron = Str ;
+  N = Str ;
+  A = Str ;
+  V2 = Str ;
+
+lin
+  PredVP np vp = np ++ vp ;
+  ComplV2 v2 np = v2 ++ np ;
+  DetCN det cn = det ++ cn ;
+  AdjCN ap cn = ap ++ cn ;
+  UseN n = n ;
+  UseA a = a ;
+  UsePron pron = pron ;
+
+  the_Det = "the" ;
+  black_A = "black" ;
+  cat_N = "cat" ;
+  see_V2 = "sees" ;
+  we_Pron = "us" ;
+
+}
\ No newline at end of file
diff --git a/lectures/lecture-02/IntroIta.gf b/lectures/lecture-02/IntroIta.gf
new file mode 100644
index 0000000..d3e6530
--- /dev/null
+++ b/lectures/lecture-02/IntroIta.gf
@@ -0,0 +1,30 @@
+concrete IntroIta of Intro = {
+
+lincat
+  S = Str ;
+  NP = Str ;
+  VP = Str ;
+  CN = Str ;
+  AP = Str ;
+  Det = Str ;
+  Pron = Str ;
+  N = Str ;
+  A = Str ;
+  V2 = Str ;
+
+lin
+  PredVP np vp = np ++ vp ;
+  ComplV2 v2 np = np ++ v2 ;
+  DetCN det cn = det ++ cn ;
+  AdjCN ap cn = cn ++ ap ;
+  UseN n = n ;
+  UseA a = a ;
+  UsePron pron = pron ;
+
+  the_Det = "il" ;
+  black_A = "nero" ;
+  cat_N = "gatto" ;
+  see_V2 = "vede" ;
+  we_Pron = "ci" ;
+
+}
\ No newline at end of file