TASK 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.
PROBLEM: artifacts at the museum include military aircraft : a sopwith triplane from the first world war and an avro lancaster from the second world war.

SOLUTION: it has military aircraft : a sopwith triplane from the first world war . artifacts at the museum include an avro lancaster from the second world war.

PROBLEM: after she has finished her wrestling career , james plans to own a farm and be an equine trainer.

SOLUTION: after she finishes her wrestling career , james plans to own a farm and be an equine trainer.

PROBLEM: while it is a self-contained story , the book continues and develops many of the themes touched on in the first book.

SOLUTION:
while it is a complete story , the book continues and develops many of the themes introduced in the first book.