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

### Instruction:
Where did the player with a transfer type, a summer transfer window, and ended before 2013 move from?

### Inputs:
table_name: table, columns: ['Nat.', 'Name', 'Moving from', 'Type', 'Transfer window', 'Ends', 'Transfer fee', 'Source']

### Response:
SELECT Moving from FROM table WHERE Type = transfer AND Transfer window = summer AND Ends < 2013