Parse this person name:

Constance Sauvage-Martins (1316-1369, flourished 1346-1364)
user
first_name: Constance
last_name: Sauvage-Martins
middle_names: []
temporal:
- start: 1316
  end: 1369
  type: life_span
- start: 1346
  end: 1364
  type: flourished
titles: []
extra_info: []
assistant