Parse this person name:

Steffen Gute, 1820-1872, flourished 1839-1854
user
first_name: Steffen
last_name: Gute
middle_names: []
temporal:
- start: 1820
  end: 1872
  type: life_span
- start: 1839
  end: 1854
  type: flourished
titles: []
extra_info: []
assistant