Parse this person name:

Eleni Ullmann (1726-1779, flourished 1754-1774)
user
first_name: Eleni
last_name: Ullmann
middle_names: []
temporal:
- start: 1726
  end: 1779
  type: life_span
- start: 1754
  end: 1774
  type: flourished
titles: []
extra_info: []
assistant