Parse this person name:

Rik Verharen (1397-1445, flourished 1416-1440)
user
first_name: Rik
last_name: Verharen
middle_names: []
temporal:
- start: 1397
  end: 1445
  type: life_span
- start: 1416
  end: 1440
  type: flourished
titles: []
extra_info: []
assistant