Parse this person name:

Watts David, David K. F. Mark Charlene Austin, 1332-1409
user
first_name: David
last_name: Watts David
middle_names:
- K.
- F.
- Mark
- Charlene
- Austin
temporal:
- start: 1332
  end: 1409
  type: life_span
titles: []
extra_info: []
assistant