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

### Instruction:
what is the lifespan when the imperial height is 7ft 8 in and the nationality is fiji?

### Inputs:
table_name: table, columns: ['Nationality', 'Metric', 'Imperial', 'Name', 'Lifespan']

### Response:
SELECT Lifespan FROM table WHERE Imperial = 7ft 8 in AND Nationality = fiji