Parse this person name:

Anastasia Grau (1843-1899, flourished 1858-1878)
user
first_name: Anastasia
last_name: Grau
middle_names: []
temporal:
- start: 1843
  end: 1899
  type: life_span
- start: 1858
  end: 1878
  type: flourished
titles: []
extra_info: []
assistant