Parse this person name:

Fem Jansen (1315-1376, flourished 1345-1371)
user
first_name: Fem
last_name: Jansen
middle_names: []
temporal:
- start: 1315
  end: 1376
  type: life_span
- start: 1345
  end: 1371
  type: flourished
titles: []
extra_info: []
assistant