Teacher: You will be given a passage, and your task is to generate a Yes/No question that is answerable based on the given passage.
Teacher: Now, understand the problem? If you are still confused, see the following example:
Powdered sugar, also called confectioners' sugar, icing sugar, and icing cake, is a finely ground sugar produced by milling granulated sugar into a powdered state. It usually contains a small amount of anti-caking agent to prevent clumping and improve flow. Although most often produced in a factory, powdered sugar can also be made by processing ordinary granulated sugar in a coffee grinder, or by crushing it by hand in a mortar and pestle.
Solution: is confectionary sugar the same as powdered sugar?
Reason: The question is a yes/no question, and it is answerable based on the given passage.

Now, solve this instance: The group keeps searching for Sophia but is unsuccessful. In the episode ``Cherokee Rose'', Carl's injuries ultimately lead the whole group onto Hershel Greene's farm, where they settle. They continue their search, but still nothing seems to turn up. In the episode ``Chupacabra'', the only thing that comes to light is Sophia's doll, which had been discovered by a member of the group named Daryl Dixon. Daryl goes on several searches for Sophia, being one of the most devoted members of the group in looking towards recovering her. He and Carol bond greatly because of his efforts. In the mid-season finale ``Pretty Much Dead Already'', Glenn tells the group that he discovered that Hershel has been keeping a group of walkers, consisting largely of his family and neighbors, in his barn, as he had believed them to be sick but nonetheless curable patients. Shane goes against Rick's orders, opens the barn, and (along with the rest of the group) shoots all the walkers that stumble out. Just as things seem to be over and done with, one more walker stumbles out of the barn - Sophia, who had been bitten while in the woods. (She had then been found by Otis, who put her zombified form in the barn before his death.) Knowing what must be done, Rick steps forward and shoots her, putting her out of her misery. In the mid-season premiere ``Nebraska'', she is buried in a funeral ceremony, alongside Hershel's second wife Annette and stepson Shawn (who were also kept in his barn as walkers). Carol does not attend the funeral because her daughter ``died a long time ago''.
Student:
do they find sophia on the walking dead?