Parse this person name:

Nikolas Fechner (1709-1785, flourished 1739-1751)
user
first_name: Nikolas
last_name: Fechner
middle_names: []
temporal:
- start: 1709
  end: 1785
  type: life_span
- start: 1739
  end: 1751
  type: flourished
titles: []
extra_info: []
assistant