Parse this person name:

Robert Blake, 1218-1279, flourished 1237-1247
user
first_name: Robert
last_name: Blake
middle_names: []
temporal:
- start: 1218
  end: 1279
  type: life_span
- start: 1237
  end: 1247
  type: flourished
titles: []
extra_info: []
assistant