Dioneo's role as the narrator of the "Tenth Day: Tenth Tale.", he tell this particular tale to the other members of the brigata and it reveal about his character of recognizing the gender hierarchy in society and focuses most of his life’s work exploiting the tensions that result.
A has a Prepositional Phrase.
Hope this helps :D
In the system of voluntary restriction, if one person takes more than his or her share, it will ruin the system for everyone