diff --git a/README.md b/README.md
index 6e3e279..5526aeb 100644
--- a/README.md
+++ b/README.md
@@ -354,4 +354,13 @@ xxd -b file
 xxd  file
 ```
 
-termin oddawania zadań - 15. listopada
\ No newline at end of file
+termin oddawania zadań - 15. listopada
+
+
+## Zajęcia 7
+https://www.openfst.org/twiki/bin/view/GRM/Thrax
+
+https://www.cs.jhu.edu/~jason/465/hw-ofst/hw-ofst.pdf
+
+Wszystkie zadania proszę robić na wzór `TaskH00`. Proszę umieszczać gramatykę w pliku `grammar.grm` oraz
+opisywać finalną regułę nazwą `FinalRule`.
\ No newline at end of file
diff --git a/thrax_example.grm b/thrax_example.grm
index 652b74b..e20941e 100644
--- a/thrax_example.grm
+++ b/thrax_example.grm
@@ -7,5 +7,5 @@ Bit = Zero | One;
 
 export First = Optimize[Zero Zero* Bit* One One One One?];
 
-export Second = Optimize[ (Zero One (One One)*)* |   (One (One One)*  Zero )*  |   Zero* |  (Zero One (One One)* Zero )* ];
+export Second = Optimize[ (Zero One (One One)* )* |   (One (One One)*  Zero )*  |   Zero* |  (Zero One (One One)* Zero )* ];
 export Third = Optimize["a" (("b":"x")+ | ("c"+ : "y") | ("":"fric")) "a"];