Parse this person name:

Saskia Lübs (1421-1478, flourished 1438-1460)
user
first_name: Saskia
last_name: Lübs
middle_names: []
temporal:
- start: 1421
  end: 1478
  type: life_span
- start: 1438
  end: 1460
  type: flourished
titles: []
extra_info: []
assistant