Parse this person name:

Robert Holt, 1920-1962, flourished 1936-1957
user
first_name: Robert
last_name: Holt
middle_names: []
temporal:
- start: 1920
  end: 1962
  type: life_span
- start: 1936
  end: 1957
  type: flourished
titles: []
extra_info: []
assistant