Parse this person name:

Mark Gray, 1902-1961, flourished 1925-1952
user
first_name: Mark
last_name: Gray
middle_names: []
temporal:
- start: 1902
  end: 1961
  type: life_span
- start: 1925
  end: 1952
  type: flourished
titles: []
extra_info: []
assistant