Detailed Instructions: 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:in medieval england , the territories of lancashire and cornwall were made duchies , with certain powers accruing to their dukes.
Solution:
in medieval england , the territories of lancashire and cornwall were made duchies , with certain powers given to their dukes.