Given the task definition and input, reply with output. In this task you will be given a text passage from a trivia quiz. You should choose the category this question belongs to from these categories: History, Science, Social Science, Fine Arts, Literature. You can only choose one category, so if in doubt, please choose the closest match.

According to the Tale of the Two Brothers, this god produced a stream in order to protect Bata. This god was worshipped in the form of the all-black oracular Mnevis bull. His saliva was mixed with some dust and formed into a snake, which poisoned and immobilized him, allowing a goddess to interrogate him and learn his true name. The deifications of perception and command, Sia and Hu, were said to accompany this god during his time on the Mesektet and the (*) Mandjet. In another story, he mixed beer with ocher or hematite to pacify Sekhmet. During his travels through Duat, he fought the evil serpent Apep. He, or a god with whom he was syncretized, created Shu and Tefnut by masturbating, and he was worshipped at Heliopolis. For 10 points, identify this god with whom Atum and Amun were regularly syncretized, the Egyptian god of the sun.
Social Science