Final answer:
The information provided does not give a clear reason why the woman forced Hannah to hand over the blue ribbons.
Step-by-step explanation:
In the given information, there are multiple instances where ribbons are mentioned, including blue ribbons.
However, the information provided does not clearly indicate why the woman forced Hannah to hand over the blue ribbons.
Without further context or specific details, it is difficult to determine the exact reason behind her actions. In order to understand the woman's motives, more information would be needed from the text or source material.