Parse this person name:

Isabel van Gent, 1260-1321, flourished 1287-1303
user
first_name: Isabel
last_name: van Gent
middle_names: []
temporal:
- start: 1260
  end: 1321
  type: life_span
- start: 1287
  end: 1303
  type: flourished
titles: []
extra_info: []
assistant