Parse this person name:

سعيد آل جعفر (1778-1840, flourished 1804-1819)
user
first_name: سعيد
last_name: آل جعفر
middle_names: []
temporal:
- start: 1778
  end: 1840
  type: life_span
- start: 1804
  end: 1819
  type: flourished
titles: []
extra_info: []
assistant