Parse this person name:

Hansjörg Fechner, 1727-1784, flourished 1757-1779
user
first_name: Hansjörg
last_name: Fechner
middle_names: []
temporal:
- start: 1727
  end: 1784
  type: life_span
- start: 1757
  end: 1779
  type: flourished
titles: []
extra_info: []
assistant