Complex sentence: Jane Austen (16 December 1775--18 July 1817) was an English novelist known primarily for her six major novels, which interpret, critique and comment upon the British landed gentry at the end of the 18th century.
Split into simpler sentences: Jane Austen (16 December 1775--18 July 1817) was an English novelist. Her work interprets, critiques and comments upon the British landed gentry at the end of the 18th century.