Parse this person name:

Benjamin Janssen, 1202-1268, flourished 1225-1243
user
first_name: Benjamin
last_name: Janssen
middle_names: []
temporal:
- start: 1202
  end: 1268
  type: life_span
- start: 1225
  end: 1243
  type: flourished
titles: []
extra_info: []
assistant