Parse this person name:

خلف آل عطفة (1912-1978, flourished 1939-1955)
user
first_name: خلف
last_name: آل عطفة
middle_names: []
temporal:
- start: 1912
  end: 1978
  type: life_span
- start: 1939
  end: 1955
  type: flourished
titles: []
extra_info: []
assistant