Parse this person name:

Petra Sorgatz (1247-1287, flourished 1262-1282)
user
first_name: Petra
last_name: Sorgatz
middle_names: []
temporal:
- start: 1247
  end: 1287
  type: life_span
- start: 1262
  end: 1282
  type: flourished
titles: []
extra_info: []
assistant