Natural Language in Things 3

When creating a due date in Things 3 with Natural Language, how do I create a due date 2 weeks before the deadline? Example:

Purchase flowers 2 weeks before May 1.

I have tried a minus sign and it does not work…May 1 - 2w

The + works, but not the -

What am I doing wrong?

Well, I love it when I solve my own problem. The solution is…

2w before May 1