Parse this person name:

Janne de Heer (1857-1909, flourished 1879-1897)
user
first_name: Janne
last_name: de Heer
middle_names: []
temporal:
- start: 1857
  end: 1909
  type: life_span
- start: 1879
  end: 1897
  type: flourished
titles: []
extra_info: []
assistant