Parse this person name:

Ryszard Steinberg (1800-1846, flourished 1825-1840)
user
first_name: Ryszard
last_name: Steinberg
middle_names: []
temporal:
- start: 1800
  end: 1846
  type: life_span
- start: 1825
  end: 1840
  type: flourished
titles: []
extra_info: []
assistant