Parse this person name:

Pien Mansvelt (1260-1331, flourished 1283-1311)
user
first_name: Pien
last_name: Mansvelt
middle_names: []
temporal:
- start: 1260
  end: 1331
  type: life_span
- start: 1283
  end: 1311
  type: flourished
titles: []
extra_info: []
assistant