Parse this person name:

Kay van Bunschoten (1284-1349, flourished 1312-1337)
user
first_name: Kay
last_name: van Bunschoten
middle_names: []
temporal:
- start: 1284
  end: 1349
  type: life_span
- start: 1312
  end: 1337
  type: flourished
titles: []
extra_info: []
assistant