Parse this person name:

Eliza Heerkens (1789-1841, flourished 1807-1834)
user
first_name: Eliza
last_name: Heerkens
middle_names: []
temporal:
- start: 1789
  end: 1841
  type: life_span
- start: 1807
  end: 1834
  type: flourished
titles: []
extra_info: []
assistant