Parse this person name:

Mohammed van Gastel (1220-1271, flourished 1243-1266)
user
first_name: Mohammed
last_name: van Gastel
middle_names: []
temporal:
- start: 1220
  end: 1271
  type: life_span
- start: 1243
  end: 1266
  type: flourished
titles: []
extra_info: []
assistant