diff --git a/src/JobShopParser/jobshop1_parser.py b/src/JobShopParser/jobshop1_parser.py
index a064077..90e44d7 100644
--- a/src/JobShopParser/jobshop1_parser.py
+++ b/src/JobShopParser/jobshop1_parser.py
@@ -1,10 +1,10 @@
-from parsomonious.grammar import Grammar
+from parsimonious.grammar import Grammar
 
 grammar = Grammar(
-        """
+        r"""
         start           = skip_preface
-        skip_preface    = instance_list / ~"."s skip_preface
-        eol             = \n / \r\n
+        skip_preface    = instance_list / (~"."s skip_preface)
+        eol             = "\n" / "\r\n"
         _               = " "
         instance_list   = problem_instance (sep_line problem_instance eol)* eof
         problem_instance = strip_whitespace "instance" _ instance_name eol eol sep_line description eol job_data
@@ -17,3 +17,6 @@ grammar = Grammar(
         job_data        = ~"[ \r\n0-9]*"s
         """)
 
+with open("./inputdata/jobshop1.txt") as datafile:
+    inputdata : str = datafile.read()
+    print(grammar.parse(inputdata))