diff --git a/src/habitmove/nomiedata.py b/src/habitmove/nomiedata.py
index 75a4189..60d2670 100644
--- a/src/habitmove/nomiedata.py
+++ b/src/habitmove/nomiedata.py
@@ -47,7 +47,7 @@ class Event:
     id: str
     start: int
     end: int
-    text: str
+    text: str = ""
     activities: list[Activity] = field(default_factory=lambda: [])
     score: int = 0
     lat: float = 0.0
diff --git a/src/habitmove/parser.py b/src/habitmove/parser.py
new file mode 100644
index 0000000..f33499e
--- /dev/null
+++ b/src/habitmove/parser.py
@@ -0,0 +1,16 @@
+from habitmove.nomiedata import Event, Tracker
+
+
+class Parser:
+    def __init__(self, path: str, filename: str) -> None:
+        """Load in a data set"""
+        self.path = path
+        self.filename = filename
+
+    def extract_trackers(self) -> list[Tracker]:
+        """Extract trackers from the data set"""
+        raise NotImplementedError
+
+    def extract_events(self) -> list[Event]:
+        """Extract events from the data set"""
+        raise NotImplementedError