Parse this person name:

جرير المهنا, 1412-1490, flourished 1430-1449
user
first_name: جرير
last_name: المهنا
middle_names: []
temporal:
- start: 1412
  end: 1490
  type: life_span
- start: 1430
  end: 1449
  type: flourished
titles: []
extra_info: []
assistant