Input (grade 11): Bohr married Margrethe NÃ rlund in 1912, and one of their sons, Aage Bohr, grew up to be an important physicist who in 1975 also received the Nobel prize.
Output (grade 4): He married Margrethe NÃ rlund in 1912. One of his sons was Aage Bohr, who was also an important physicist.