Parse this person name:

Ursula Weimer, 1721-1798, flourished 1751-1778
user
first_name: Ursula
last_name: Weimer
middle_names: []
temporal:
- start: 1721
  end: 1798
  type: life_span
- start: 1751
  end: 1778
  type: flourished
titles: []
extra_info: []
assistant