Parse this person name:

Birnbaum Tröst, Lars Y. Birgitta Eugenia, born 1817
user
first_name: Lars
last_name: Birnbaum Tröst
middle_names:
- Y.
- Birgitta
- Eugenia
temporal:
- start: 1817
  end: null
  type: life_span
titles: []
extra_info: []
assistant