Simplify the following text for a Grade 5 native English-speaking person.
Original: From the union of Geb and Nut came , among others , the most popular of Egyptian goddesses , Isis , the mother of Horus , whose story is central to that of her brother-husband , the resurrection god Osiris .
Simplified: Nut was the sister and wife of Geb , and the mother of Isis , Osiris , Nephthys , Horus and Seth .