Parse this person name:

Dennis Holland (1304-1378, flourished 1321-1337)
user
first_name: Dennis
last_name: Holland
middle_names: []
temporal:
- start: 1304
  end: 1378
  type: life_span
- start: 1321
  end: 1337
  type: flourished
titles: []
extra_info: []
assistant