Parse this person name:

Mart Barents, 1271-1341, flourished 1289-1315
user
first_name: Mart
last_name: Barents
middle_names: []
temporal:
- start: 1271
  end: 1341
  type: life_span
- start: 1289
  end: 1315
  type: flourished
titles: []
extra_info: []
assistant