Parse this person name:

Shannon Thomas, 1849-1902, flourished 1875-1897
user
first_name: Shannon
last_name: Thomas
middle_names: []
temporal:
- start: 1849
  end: 1902
  type: life_span
- start: 1875
  end: 1897
  type: flourished
titles: []
extra_info: []
assistant