Parse this person name:

Amanda Martin (1221-1290, flourished 1250-1274)
user
first_name: Amanda
last_name: Martin
middle_names: []
temporal:
- start: 1221
  end: 1290
  type: life_span
- start: 1250
  end: 1274
  type: flourished
titles: []
extra_info: []
assistant