Parse this person name:

علاء الدّين آل سعود, 1912-1958, flourished 1942-1953
user
first_name: علاء الدّين
last_name: آل سعود
middle_names: []
temporal:
- start: 1912
  end: 1958
  type: life_span
- start: 1942
  end: 1953
  type: flourished
titles: []
extra_info: []
assistant