1. Collection "Locations":
   • Document: Location_ID
     • Field: name (String)
     • Field: address (Map)
       • city
       • houseNumber
       • street
       • zipCode
     • Field: coordinates (Geopoint)
     • Field: description (String)
     • Field: logo (String)
2. Collection "Apartments":
   • Document: Apartment_ID
     • Field: location (Reference to Location document)
     • Field: type (String)
     • Field: roomCount (Number)
     • Field: amenities (Array of Strings)
     • Field: availabilityStatus (String)
     • Field: availabilityDate (Timestamp)
     • Field: price (Number)
     • Field: objectdescription (String)
     • Field: locationDescription (String)
3. Collection "Images":
   • Document: Image_ID
     • Field: location (Reference to Location document)
     • Field: apartment (Reference to Apartment document)
     • Field: imageUrl (String)
4. Collection "Prices":
   • Document: Price_ID
     • Field: location (Reference to Location document)
     • Field: apartment (Reference to Apartment document)
     • Field: period (String)
     • Field: pricePerMonth (Number)
     • Field: pricePerWeek (Number)
5. Collection "ContactRequests":
   • Document: Request_ID
     • Field: name (String)
     • Field: email (String)
     • Field: phone (String)
     • Field: location (Reference to Location document)
     • Field: message (String)
     • Field: timestamp (Timestamp)