text: A god of this people transforms into a cat and uses a knife to decapitate a wicked serpent.
full_question: A god of this people transforms into a cat and uses a knife to decapitate a wicked serpent. This people's calendar includes five extra days won in a gambling match with the moon. A god of this culture asserts his superiority by ejaculating into a head of lettuce eaten by his rival. When these people die, their hearts are fed to the demon Ammit if they fail to weigh lighter than a single feather. In a myth from this civilization, a deceased god's fourteen scattered body parts are used to give birth to the god that defeats Set and avenges his father Osiris. For 10 points, name these people who believed that the falcon-headed Horus was manifested in each pharaoh.
first_sentence: A god of this people transforms into a cat and uses a knife to decapitate a wicked serpent.
raw_answer: ancient Egyptians