Parse this person name:

Ewald Wagenknecht, 1749-1825, flourished 1764-1783
user
first_name: Ewald
last_name: Wagenknecht
middle_names: []
temporal:
- start: 1749
  end: 1825
  type: life_span
- start: 1764
  end: 1783
  type: flourished
titles: []
extra_info: []
assistant