Parse this person name:

Mitchell Obrien, 1897-1951, flourished 1916-1937
user
first_name: Mitchell
last_name: Obrien
middle_names: []
temporal:
- start: 1897
  end: 1951
  type: life_span
- start: 1916
  end: 1937
  type: flourished
titles: []
extra_info: []
assistant