Parse this person name:

Franz Josef Tröst, 1870-1945, flourished 1898-1920
user
first_name: Franz Josef
last_name: Tröst
middle_names: []
temporal:
- start: 1870
  end: 1945
  type: life_span
- start: 1898
  end: 1920
  type: flourished
titles: []
extra_info: []
assistant