Parse this person name:

Walther Kruschwitz (1651-1706, flourished 1679-1701)
user
first_name: Walther
last_name: Kruschwitz
middle_names: []
temporal:
- start: 1651
  end: 1706
  type: life_span
- start: 1679
  end: 1701
  type: flourished
titles: []
extra_info: []
assistant