Slight modification

app.py

@@ -53,7 +53,7 @@ demo = gr.Interface(
     description="Specify a passenger and predict whether he would have survived.",
     allow_flagging="never",
     inputs=[
-        gr.inputs.Dropdown(default="Upper Class", choices=[k for k in pclass_mapping.keys()], label="Passenger Class"),
+        gr.inputs.Dropdown(default="Middle Class", choices=[k for k in pclass_mapping.keys()], label="Passenger Class"),
         gr.inputs.Dropdown(default="Female", choices=[k for k in sex_mapping.keys()], label="Sex"),
         gr.inputs.Dropdown(default="Child", choices=[k for k in age_mapping.keys()], label="Age"),
         gr.inputs.Slider(minimum=1, maximum=10, default=8, step=1, label="ticket price category"),