Parse this person name:

Justina Hellwig (1285-1329, flourished 1309-1320)
user
first_name: Justina
last_name: Hellwig
middle_names: []
temporal:
- start: 1285
  end: 1329
  type: life_span
- start: 1309
  end: 1320
  type: flourished
titles: []
extra_info: []
assistant