Parse this person name:

Bjorn Groenendaal, 1868-1908, flourished 1886-1897
user
first_name: Bjorn
last_name: Groenendaal
middle_names: []
temporal:
- start: 1868
  end: 1908
  type: life_span
- start: 1886
  end: 1897
  type: flourished
titles: []
extra_info: []
assistant