In this task, you're given a sentence and your task is to generate a simplified sentence that focuses on lexical paraphrasing from the original sentence given in the input.

influences regional at the end of the 12th century europe was divided into a multitude of city states and kingdoms.
europe was divided into a large number of city , states , and kingdoms at the end of the 12th century due to regional influences.

extinction non-avian dinosaurs suddenly became extinct approximately 65 million years ago.
non-flying dinosaurs suddenly became extinct around 65 million years ago.

it grows to up to 20 m , although it is typically more stunted in its native environment.

it can grow up to 20m although it 's typically more stunted in its native environment.