Parse this person name:

Sebastiaan Groote, 1248-1289, flourished 1276-1284
user
first_name: Sebastiaan
last_name: Groote
middle_names: []
temporal:
- start: 1248
  end: 1289
  type: life_span
- start: 1276
  end: 1284
  type: flourished
titles: []
extra_info: []
assistant