Parse this person name:

Margaretha Boucsein (1936-1989, flourished 1966-1982)
user
first_name: Margaretha
last_name: Boucsein
middle_names: []
temporal:
- start: 1936
  end: 1989
  type: life_span
- start: 1966
  end: 1982
  type: flourished
titles: []
extra_info: []
assistant