Parse this person name:

Yfke van der Meer, 1220-1275, flourished 1242-1257
user
first_name: Yfke
last_name: van der Meer
middle_names: []
temporal:
- start: 1220
  end: 1275
  type: life_span
- start: 1242
  end: 1257
  type: flourished
titles: []
extra_info: []
assistant