Parse this person name:

Tristan Regnier, 1904-1971, flourished 1926-1953
user
first_name: Tristan
last_name: Regnier
middle_names: []
temporal:
- start: 1904
  end: 1971
  type: life_span
- start: 1926
  end: 1953
  type: flourished
titles: []
extra_info: []
assistant