Parse this person name:

Robert Ellison, 1217-1270, flourished 1239-1249
user
first_name: Robert
last_name: Ellison
middle_names: []
temporal:
- start: 1217
  end: 1270
  type: life_span
- start: 1239
  end: 1249
  type: flourished
titles: []
extra_info: []
assistant