Parse this person name:

Floris Emmen (1419-1480, flourished 1445-1458)
user
first_name: Floris
last_name: Emmen
middle_names: []
temporal:
- start: 1419
  end: 1480
  type: life_span
- start: 1445
  end: 1458
  type: flourished
titles: []
extra_info: []
assistant