Parse this person name:

Owen van Dokkum, 1350-1417, flourished 1375-1396
user
first_name: Owen
last_name: van Dokkum
middle_names: []
temporal:
- start: 1350
  end: 1417
  type: life_span
- start: 1375
  end: 1396
  type: flourished
titles: []
extra_info: []
assistant