diff --git a/pyproject.toml b/pyproject.toml
index 6acdc37..9dfa185 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -16,7 +16,7 @@ classifiers = [
     "Programming Language :: Python :: 3.11",
     "Programming Language :: Python :: 3.12",
 ]
-dependencies = ["pydantic"] # add all the dependencies here
+dependencies = ["pydantic", "loguru"] # add all the dependencies here
 dynamic = ["readme", "version"]
 
 [project.urls]
diff --git a/requirements.txt b/requirements.txt
index 1d5fbc7..2af0685 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -6,12 +6,10 @@
 #
 annotated-types==0.6.0
     # via pydantic
-distlib==0.3.8
-    # via virtualenv
-filelock==3.13.1
-    # via virtualenv
-platformdirs==4.2.0
-    # via virtualenv
+colorama==0.4.6
+    # via loguru
+loguru==0.7.2
+    # via migmose (pyproject.toml)
 pydantic==2.6.3
     # via migmose (pyproject.toml)
 pydantic-core==2.16.3
@@ -20,5 +18,5 @@ typing-extensions==4.10.0
     # via
     #   pydantic
     #   pydantic-core
-virtualenv==20.25.1
-    # via migmose (pyproject.toml)
+win32-setctime==1.1.0
+    # via loguru
diff --git a/src/migmose/mig/nachrichtenstrukturzeile.py b/src/migmose/mig/nachrichtenstrukturzeile.py
index 08bcf9b..c962491 100644
--- a/src/migmose/mig/nachrichtenstrukturzeile.py
+++ b/src/migmose/mig/nachrichtenstrukturzeile.py
@@ -7,7 +7,18 @@
 
 class NachrichtenstrukturZeile(BaseModel):
     """
-    class for lines in mig tables
+    class for lines in mig tables, e.g. (ORDCHG):
+    {
+        "zaehler": "0010",
+        "nr": "1",
+        "bezeichnung": "UNH",
+        "standard_status": "M",
+        "bdew_status": "M",
+        "standard_maximale_wiederholungen": 1,
+        "bdew_maximale_wiederholungen": 1,
+        "ebene": 0,
+        "inhalt": "Nachrichten-Kopfsegment"
+        }
     """
 
     zaehler: str
diff --git a/src/migmose/mig/segmentgruppe.py b/src/migmose/mig/segmentgruppe.py
index 29fbc9f..3717aa9 100644
--- a/src/migmose/mig/segmentgruppe.py
+++ b/src/migmose/mig/segmentgruppe.py
@@ -7,8 +7,53 @@
 
 class SegmentGruppe(NachrichtenstrukturZeile):
     """
-    class for structured segmentgroups in mig tables. builds table recursively. inherits from NachrichtenstrukturZeile
+    class for structured segmentgroups in mig tables. Builds table recursively. Inherits from NachrichtenstrukturZeile
+    e.g.(ORDCHG):
+    {
+    "segmente": [
+        {
+        "zaehler": "0160",
+        "nr": "7",
+        "bezeichnung": "NAD",
+        "standard_status": "M",
+        "bdew_status": "M",
+        "standard_maximale_wiederholungen": 1,
+        "bdew_maximale_wiederholungen": 1,
+        "ebene": 1,
+        "inhalt": "MP-ID Absender"
+        }
+        ],
+    "segmentgruppen": [
+    {
+        "segmente": [
+        {
+            "zaehler": "0260",
+            "nr": "8",
+            "bezeichnung": "CTA",
+            "standard_status": "M",
+            "bdew_status": "M",
+            "standard_maximale_wiederholungen": 1,
+            "bdew_maximale_wiederholungen": 1,
+            "ebene": 2,
+            "inhalt": "Ansprechpartner"
+            },
+            {
+            "zaehler": "0270",
+            "nr": "9",
+            "bezeichnung": "COM",
+            "standard_status": "C",
+            "bdew_status": "R",
+            "standard_maximale_wiederholungen": 5,
+            "bdew_maximale_wiederholungen": 5,
+            "ebene": 3,
+            "inhalt": "Kommunikationsverbindung"
+            }
+            ],
+        "segmentgruppen": []
+        }
+        ]
+    }
     """
 
     segmente: list[NachrichtenstrukturZeile]
-    segmentgruppe: list["SegmentGruppe"]
+    segmentgruppen: list["SegmentGruppe"]