Parse this person name:

Sanne Oversteeg (1312-1374, flourished 1333-1356)
user
first_name: Sanne
last_name: Oversteeg
middle_names: []
temporal:
- start: 1312
  end: 1374
  type: life_span
- start: 1333
  end: 1356
  type: flourished
titles: []
extra_info: []
assistant