Parse this person name:

Karen Weihmann, 1754-1820, flourished 1782-1808
user
first_name: Karen
last_name: Weihmann
middle_names: []
temporal:
- start: 1754
  end: 1820
  type: life_span
- start: 1782
  end: 1808
  type: flourished
titles: []
extra_info: []
assistant