A family of Microsoft relational database management systems designed for ease of use.
Not directly, but you can work around with two milestones - each one linked appropriately. Then use the two milestones as the start and finish date of the hammock task.
Milestone 1 is linked SS-5 days to task 5 and its start is driving task 6. Milestone 2 is linked FF+10days to task one and is driving the finish.