Parse this person name:

Niels Köhler (1712-1765, flourished 1730-1756)
user
first_name: Niels
last_name: Köhler
middle_names: []
temporal:
- start: 1712
  end: 1765
  type: life_span
- start: 1730
  end: 1756
  type: flourished
titles: []
extra_info: []
assistant