Parse this person name:

Guus Hekker (1814-1874, flourished 1834-1859)
user
first_name: Guus
last_name: Hekker
middle_names: []
temporal:
- start: 1814
  end: 1874
  type: life_span
- start: 1834
  end: 1859
  type: flourished
titles: []
extra_info: []
assistant