Parse this person name:

Marta Gras (1900-1953, flourished 1925-1937)
user
first_name: Marta
last_name: Gras
middle_names: []
temporal:
- start: 1900
  end: 1953
  type: life_span
- start: 1925
  end: 1937
  type: flourished
titles: []
extra_info: []
assistant