Parse this person name:

Bryan Emmen (1703-1752, flourished 1723-1741)
user
first_name: Bryan
last_name: Emmen
middle_names: []
temporal:
- start: 1703
  end: 1752
  type: life_span
- start: 1723
  end: 1741
  type: flourished
titles: []
extra_info: []
assistant