Parse this person name:

Berat Jonkman (1747-1811, flourished 1766-1782)
user
first_name: Berat
last_name: Jonkman
middle_names: []
temporal:
- start: 1747
  end: 1811
  type: life_span
- start: 1766
  end: 1782
  type: flourished
titles: []
extra_info: []
assistant