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

### Instruction:
Can you tell me the sum of Gain that has the Name of kass, rob, and the Avg/g smaller than 1.9?

### Inputs:
table_name: table, columns: ['Name', 'Gain', 'Loss', 'Long', 'Avg/g']

### Response:
SELECT SUM Gain FROM table WHERE Name = kass, rob AND Avg/g < 1.9