Parse this person name:

Senna Mahieu (1214-1265, flourished 1232-1260)
user
first_name: Senna
last_name: Mahieu
middle_names: []
temporal:
- start: 1214
  end: 1265
  type: life_span
- start: 1232
  end: 1260
  type: flourished
titles: []
extra_info: []
assistant