Parse this person name:

Sem van Bentheim (1506-1553, flourished 1524-1541)
user
first_name: Sem
last_name: van Bentheim
middle_names: []
temporal:
- start: 1506
  end: 1553
  type: life_span
- start: 1524
  end: 1541
  type: flourished
titles: []
extra_info: []
assistant