Parse this person name:

Mariah Robertson-Thomas (1918-1974, flourished 1943-1961)
user
first_name: Mariah
last_name: Robertson-Thomas
middle_names: []
temporal:
- start: 1918
  end: 1974
  type: life_span
- start: 1943
  end: 1961
  type: flourished
titles: []
extra_info: []
assistant