text: An older god challenges this deity to a contest to see who can stay submerged underwater for three months.
full_question: An older god challenges this deity to a contest to see who can stay submerged underwater for three months.This god is healed when some milk is poured into his wounds, which were created when some of his bodyparts were torn out, buried in a mountain, and bloomed into lotuses. Among his children is a radiant disk thatemerges from the head of a god who eats some lettuce filled with this god's semen. This deity paints a woodenboat to look like stone to win a race against the sinking stone boat of his rival. This god's mother reassemblesthe fourteen scattered remains of this god's murdered father. This god defeats his uncle Set in a series ofcontendings to become ruler of Egypt. For 10 points, name this falcon-headed son of Osiris. 
first_sentence: An older god challenges this deity to a contest to see who can stay submerged underwater for three months.
raw_answer: Horus 