Parse this person name:

Knut Beer (1789-1865, flourished 1816-1844)
user
first_name: Knut
last_name: Beer
middle_names: []
temporal:
- start: 1789
  end: 1865
  type: life_span
- start: 1816
  end: 1844
  type: flourished
titles: []
extra_info: []
assistant