Parse this person name:

Marian Hellwig (1400-1461, flourished 1418-1435)
user
first_name: Marian
last_name: Hellwig
middle_names: []
temporal:
- start: 1400
  end: 1461
  type: life_span
- start: 1418
  end: 1435
  type: flourished
titles: []
extra_info: []
assistant