Parse this person name:

David Karels, 1248-1308, flourished 1271-1287
user
first_name: David
last_name: Karels
middle_names: []
temporal:
- start: 1248
  end: 1308
  type: life_span
- start: 1271
  end: 1287
  type: flourished
titles: []
extra_info: []
assistant