Parse this person name:

Grit Kühnert, 1247-1298, flourished 1262-1284
user
first_name: Grit
last_name: Kühnert
middle_names: []
temporal:
- start: 1247
  end: 1298
  type: life_span
- start: 1262
  end: 1284
  type: flourished
titles: []
extra_info: []
assistant