Parse this person name:

Robert Maynard (1350-1392, flourished 1379-1387)
user
first_name: Robert
last_name: Maynard
middle_names: []
temporal:
- start: 1350
  end: 1392
  type: life_span
- start: 1379
  end: 1387
  type: flourished
titles: []
extra_info: []
assistant