TASK DEFINITION: In this task, you need to reverse all words of a given length in the sentence. The number of letters in a word determine its length. For example, the length of the word "apple" is 5.
PROBLEM: Sentence: 'a man on skis is under an empty ski lift'. Reverse all words of length '1' in the given sentence.

SOLUTION: a man on skis is under an empty ski lift

PROBLEM: Sentence: 'the woman is crossing the street holding an umbrella'. Reverse all words of length '8' in the given sentence.

SOLUTION: the woman is gnissorc the street holding an allerbmu

PROBLEM: Sentence: 'a train sits on a railroad track as a metal awning covers it'. Reverse all words of length '1' in the given sentence.

SOLUTION:
a train sits on a railroad track as a metal awning covers it