Parse this person name:

Monja Geisel, 1233-1308, flourished 1251-1270
user
first_name: Monja
last_name: Geisel
middle_names: []
temporal:
- start: 1233
  end: 1308
  type: life_span
- start: 1251
  end: 1270
  type: flourished
titles: []
extra_info: []
assistant