Parse this person name:

Susan Mercier (1680-1742, flourished 1709-1721)
user
first_name: Susan
last_name: Mercier
middle_names: []
temporal:
- start: 1680
  end: 1742
  type: life_span
- start: 1709
  end: 1721
  type: flourished
titles: []
extra_info: []
assistant