Parse this person name:

Jorn Thomas, 1247-1317, flourished 1272-1302
user
first_name: Jorn
last_name: Thomas
middle_names: []
temporal:
- start: 1247
  end: 1317
  type: life_span
- start: 1272
  end: 1302
  type: flourished
titles: []
extra_info: []
assistant