Parse this person name:

Elias van den Nuwenhijsen-Gellemeyer, flourished 1436-1454
user
first_name: Elias
last_name: van den Nuwenhijsen-Gellemeyer
middle_names: []
temporal:
- start: 1436
  end: 1454
  type: flourished
titles: []
extra_info: []
assistant