Parse this person name:

Juan Beyer (1887-1955, flourished 1906-1921)
user
first_name: Juan
last_name: Beyer
middle_names: []
temporal:
- start: 1887
  end: 1955
  type: life_span
- start: 1906
  end: 1921
  type: flourished
titles: []
extra_info: []
assistant