Parse this person name:

Maritta Tröst (1315-1357, flourished 1342-1352)
user
first_name: Maritta
last_name: Tröst
middle_names: []
temporal:
- start: 1315
  end: 1357
  type: life_span
- start: 1342
  end: 1352
  type: flourished
titles: []
extra_info: []
assistant