Parse this person name:

Joy Velderman (1221-1286, flourished 1250-1266)
user
first_name: Joy
last_name: Velderman
middle_names: []
temporal:
- start: 1221
  end: 1286
  type: life_span
- start: 1250
  end: 1266
  type: flourished
titles: []
extra_info: []
assistant