Parse this person name:

Merle Rijcken (1819-1876, flourished 1848-1858)
user
first_name: Merle
last_name: Rijcken
middle_names: []
temporal:
- start: 1819
  end: 1876
  type: life_span
- start: 1848
  end: 1858
  type: flourished
titles: []
extra_info: []
assistant