Parse this person name:

Mary Alexander, 1247-1287, flourished 1272-1282
user
first_name: Mary
last_name: Alexander
middle_names: []
temporal:
- start: 1247
  end: 1287
  type: life_span
- start: 1272
  end: 1282
  type: flourished
titles: []
extra_info: []
assistant