Parse this person name:

Maria Ehlert-van der Leek (1254-1315, flourished 1272-1286)
user
first_name: Maria
last_name: Ehlert-van der Leek
middle_names: []
temporal:
- start: 1254
  end: 1315
  type: life_span
- start: 1272
  end: 1286
  type: flourished
titles: []
extra_info: []
assistant