diff --git a/port/models.py b/port/models.py
index 09c414b..2b3f50b 100644
--- a/port/models.py
+++ b/port/models.py
@@ -51,16 +51,24 @@ class Plug(models.Model):
 class Tap(models.Model):
     num =
 
-class (models.Model):
+class Stay(models.Model):
+    arrival = models.DateTimeField('date published')
+    departure = models.DateTimeField('date published')
+    coming_from = 
+    going_to =
     
-    pub_date = models.DateTimeField('date published')
-    pub_date = models.DateTimeField('date published')
-    
-    
-class Boat(models.Model):
-class Boat(models.Model):
-class Boat(models.Model):
-class Boat(models.Model):
-class Boat(models.Model):
-
+class Payment(models.Model):
+  num =
+  date = models.DateTimeField('date published')
+  pay_type =
+  value =
+  
+class Bill_line(models.Model):
+  service = 
+  amount = 
+  
+class Service(models.Model):
+  service_type = 
+  
+  
 # Create your models here.