Parse this person name:

Bjorn van Ghoerle, 1246-1305, flourished 1262-1291
user
first_name: Bjorn
last_name: van Ghoerle
middle_names: []
temporal:
- start: 1246
  end: 1305
  type: life_span
- start: 1262
  end: 1291
  type: flourished
titles: []
extra_info: []
assistant