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

### Instruction:
What is the constructor when the Q1 order is 4?

### Inputs:
table_name: table, columns: ['Pos', 'No', 'Driver', 'Constructor', 'Q1 order', 'Q1 time', 'Q1 pos', 'Q1+Q2 time']

### Response:
SELECT Constructor FROM table WHERE Q1 order = 4