Parse this person name:

Maas Zeemans, Seth Mila B. O. R. Maarten, 1742-1808
user
first_name: Seth
last_name: Maas Zeemans
middle_names:
- Mila
- B.
- O.
- R.
- Maarten
temporal:
- start: 1742
  end: 1808
  type: life_span
titles: []
extra_info: []
assistant