Parse this person name:

Ewald Hettner, 1861-1901, flourished 1883-1896
user
first_name: Ewald
last_name: Hettner
middle_names: []
temporal:
- start: 1861
  end: 1901
  type: life_span
- start: 1883
  end: 1896
  type: flourished
titles: []
extra_info: []
assistant