You will be given a definition of a task first, then some input of the task.
In this task, you're given passages that contain mentions of names of people, places, or things. Some of these mentions refer to the same person, place, or thing. Your job is to write questions that evaluate one's understanding of such references. Good questions are expected to link pronouns (she, her, him, his, their, etc.) or other mentions to people, places, or things to which they may refer. Do not ask questions that can be answered correctly without understanding the paragraph or having multiple answers. Avoid questions that do not link phrases referring to the same entity. For each of your questions, the answer should be one or more phrases in the paragraph, and it should be unambiguous.

Passage: The only source from which Abuwtiyuw is known is a stone inscription tablet that may have come from the funerary chapel of the dog's owner. The tablet was apparently among spolia used to build another grave in approximately 2280 BC, a sixth-Dynasty mastaba, after the chapel's demolition. It was discovered on 13 October 1935 by Egyptologist George A. Reisner during a joint Harvard University-Boston Museum of Fine Arts expedition, and removed from the site four days later.The find was recorded by the main expedition photographer, Mohammedani Ibrahim, who took more than 9,321 large-format glass-plate images on Reisner's expeditions. The tablet is now held by the Egyptian Museum in Cairo (inventory number JE 67573).Neither the dog's grave nor mummy have been recovered. The tomb in which the tablet was unearthed is in Cemetery G 2100 in Giza West Field, close to the western side of the Great Pyramid of Giza (Pyramid of Khufu/Kheops). The white limestone tablet measures 54.228.223.2 cm (21.311.19.1 in) and is inscribed with ten vertical rows of hieroglyphs, separated from each other by vertical lines. Part of a leash is visible on the upper-right corner, suggesting that the tablet displayed an image of Abuwtiyuw with his owner.The text of the inscription translated by Reisner describes the gifts offered by the pharaoh in tribute at Abuwtiyuw's funeral:
The dog which was the guard of His Majesty, Abuwtiyuw is his name. His Majesty ordered that he be buried (ceremonially), that he be given a coffin from the royal treasury, fine linen in great quantity, (and) incense. His Majesty (also) gave perfumed ointment, and (ordered) that a tomb be built for him by the gangs of masons. His Majesty did this for him in order that he (the dog) might be Honoured (before the great god, Anubis).
Output:
What was discovered on 13 October 1935 by Egyptologist George A. Reisner during a joint Harvard University-Boston Museum of Fine Arts expedition?