Parse this person name:

Karen Beck (1700-1741, flourished 1721-1736)
user
first_name: Karen
last_name: Beck
middle_names: []
temporal:
- start: 1700
  end: 1741
  type: life_span
- start: 1721
  end: 1736
  type: flourished
titles: []
extra_info: []
assistant