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

### Instruction:
Who won mens singles the year sveinn logi sölvason tryggvi nilsen won mens doubles and elsa nielsen won womens singles

### Inputs:
table_name: table, columns: ['Year', 'Mens singles', 'Womens singles', 'Mens doubles', 'Womens doubles', 'Mixed doubles']

### Response:
SELECT Mens singles FROM table WHERE Mens doubles = Sveinn Logi Sölvason Tryggvi Nilsen AND Womens singles = Elsa Nielsen