Parse this person name:

Matthias Kruns, 1681-1753, flourished 1707-1722
user
first_name: Matthias
last_name: Kruns
middle_names: []
temporal:
- start: 1681
  end: 1753
  type: life_span
- start: 1707
  end: 1722
  type: flourished
titles: []
extra_info: []
assistant