Parse this person name:

عثمان آل سعود, 1793-1872, flourished 1811-1827
user
first_name: عثمان
last_name: آل سعود
middle_names: []
temporal:
- start: 1793
  end: 1872
  type: life_span
- start: 1811
  end: 1827
  type: flourished
titles: []
extra_info: []
assistant