Parse this person name:

Joana Dowerg (1706-1752, flourished 1723-1747)
user
first_name: Joana
last_name: Dowerg
middle_names: []
temporal:
- start: 1706
  end: 1752
  type: life_span
- start: 1723
  end: 1747
  type: flourished
titles: []
extra_info: []
assistant