Parse this person name:

Juliette Blanc (1921-1998, flourished 1942-1952)
user
first_name: Juliette
last_name: Blanc
middle_names: []
temporal:
- start: 1921
  end: 1998
  type: life_span
- start: 1942
  end: 1952
  type: flourished
titles: []
extra_info: []
assistant