Parse this person name:

Johanna Mielcarek, 1228-1300, flourished 1251-1276
user
first_name: Johanna
last_name: Mielcarek
middle_names: []
temporal:
- start: 1228
  end: 1300
  type: life_span
- start: 1251
  end: 1276
  type: flourished
titles: []
extra_info: []
assistant