Parse this person name:

Geert Schleich (1890-1963, flourished 1908-1926)
user
first_name: Geert
last_name: Schleich
middle_names: []
temporal:
- start: 1890
  end: 1963
  type: life_span
- start: 1908
  end: 1926
  type: flourished
titles: []
extra_info: []
assistant