What are some examples of continuous supply?

Here are some examples of continuous supply:

• An operating lease or rental of goods which does not provide the possibility for the transfer of ownership later
• Supplies of electricity and water 
• Construction services 
• Insurance services (Takaful) 
• Management services for a specified period
• Gym memberships
• Provision of labour to third parties over a specified time period
• A contract for periodic maintenance services