Parse this person name:

Constance Mary, 1350-1394, flourished 1371-1385
user
first_name: Constance
last_name: Mary
middle_names: []
temporal:
- start: 1350
  end: 1394
  type: life_span
- start: 1371
  end: 1385
  type: flourished
titles: []
extra_info: []
assistant