Parse this person name:

Bernward Heinrich, 1739-1799, flourished 1769-1780
user
first_name: Bernward
last_name: Heinrich
middle_names: []
temporal:
- start: 1739
  end: 1799
  type: life_span
- start: 1769
  end: 1780
  type: flourished
titles: []
extra_info: []
assistant