Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:
What rank has a status of proposed, with 80 floors for Celestia Spaces 4?

### Inputs:
table_name: table, columns: ['Rank', 'Name', 'Status', 'City', 'Floors']

### Response:
SELECT AVG Rank FROM table WHERE Status = proposed AND Floors = 80 AND Name = celestia spaces 4