Parse this person name:

Pien Le Marec (1239-1317, flourished 1255-1274)
user
first_name: Pien
last_name: Le Marec
middle_names: []
temporal:
- start: 1239
  end: 1317
  type: life_span
- start: 1255
  end: 1274
  type: flourished
titles: []
extra_info: []
assistant