Parse this person name:

Sjoerd Schokman, 1398-1469, flourished 1417-1427
user
first_name: Sjoerd
last_name: Schokman
middle_names: []
temporal:
- start: 1398
  end: 1469
  type: life_span
- start: 1417
  end: 1427
  type: flourished
titles: []
extra_info: []
assistant