Parse this person name:

Gunda Löffler (1739-1818, flourished 1765-1786)
user
first_name: Gunda
last_name: Löffler
middle_names: []
temporal:
- start: 1739
  end: 1818
  type: life_span
- start: 1765
  end: 1786
  type: flourished
titles: []
extra_info: []
assistant