For the dough: Break up the yeast in 2 cups lukewarm water and let dissolve completely. Pour the flour and salt onto a smooth work surface and create a well in the middle. Pour the water and yeast mixture into the well, a little at a time, and then mix by drawing some of the flour from the inner edge of the well into the water until all the flour has been drawn in. Once the yeast mixture has been incorporated, work in the wine and oil until you can create a ball of dough. Knead by rolling the dough back and forth, stretching it out with one hand and rolling it back with the other until smooth and almost spongy, about 5 minutes. Cover with a damp dishtowel and leave at room temperature 1 hour (the dough will double in size). Now you're ready to roll it out and make the panzerotti. For the filling: Meanwhile, thoroughly combine the ricotta, pecorino and mozzarella in a mixing bowl. For assembling: Roll the dough out flat or run through a pasta machine to create 2 long, 3-inch-wide sheets. Lay 1 sheet of dough on a floured work surface and place small dollops of cheese filling 3 inches apart. Lay the second sheet of dough on top and pinch the dough in between the cheeses. Cut out the individual pockets using a knife. Fry in olive oil, and then let cool before serving.