Parse this person name:

Fem Groen, 1442-1487, flourished 1471-1482
user
first_name: Fem
last_name: Groen
middle_names: []
temporal:
- start: 1442
  end: 1487
  type: life_span
- start: 1471
  end: 1482
  type: flourished
titles: []
extra_info: []
assistant