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

### Instruction:
What is the total Design flow (LPM) with a Partner of app, a Construction Start of 2008 january, and a Population Served larger than 3500?

### Inputs:
table_name: table, columns: ['Location', 'Partner', 'Construction Start', 'Inauguration Date', 'Population Served', 'Design flow (LPM)']

### Response:
SELECT SUM Design flow (LPM) FROM table WHERE Partner = app AND Construction Start = 2008 january AND Population Served > 3500