Definition: 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.

Positive Example 1 -
Input: a georgian inscription around the drum attests his name.
Output: there is a georgian inscription around the drum to confirm his name.

Positive Example 2 -
Input: it is particularly famous for the cultivation of kiwifruit.
Output: it is mostly famous for the growing of kiwifruit.

Negative Example 1 -
Input: a hunting dog refers to any dog who assists humans in hunting.
Output: a hunting dog is a dog that refers humans in hunting.

Negative Example 2 -
Input: in return , romania ceded three southern districts of bessarabia to russia and acquired dobruja.
Output: in return , romania ceded three southern districts of bessarabia to russia and acquired dobruja.

Now complete the following example -
Input: during its heyday , chang ' an was one of the largest and most populous cities in the world.
Output: 



Output:
during its prime time , chang 'an was one of the largest and most crowded cities in the world.
ghang ' sn was on of the largest most popluated cities in its heyday.
during its heyday , chang 'an was one of the largest and most populous cities in the world.
during its peak , chang 'an was one of the largest and most crowded cities in the world.
during its heyday , chang 'an was one of the largest and most populous cities in the world.
chang 'an was one of the largest and most populated cities in the world.