Parse this person name:

Margaret Le Gall (1946-1992, flourished 1961-1978)
user
first_name: Margaret
last_name: Le Gall
middle_names: []
temporal:
- start: 1946
  end: 1992
  type: life_span
- start: 1961
  end: 1978
  type: flourished
titles: []
extra_info: []
assistant