Parse this person name:

Ilonka Weller, 1819-1889, flourished 1842-1852
user
first_name: Ilonka
last_name: Weller
middle_names: []
temporal:
- start: 1819
  end: 1889
  type: life_span
- start: 1842
  end: 1852
  type: flourished
titles: []
extra_info: []
assistant