Parse this person name:

Adam Porter-Brown (1752-1819, flourished 1770-1786)
user
first_name: Adam
last_name: Porter-Brown
middle_names: []
temporal:
- start: 1752
  end: 1819
  type: life_span
- start: 1770
  end: 1786
  type: flourished
titles: []
extra_info: []
assistant