Parse this person name:

Mats Claassen, 1824-1903, flourished 1853-1876
user
first_name: Mats
last_name: Claassen
middle_names: []
temporal:
- start: 1824
  end: 1903
  type: life_span
- start: 1853
  end: 1876
  type: flourished
titles: []
extra_info: []
assistant