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: 'an elephant is in a large field standing in the grass'. Reverse all words of length '1' in the given sentence.

SOLUTION: an elephant is in a large field standing in the grass

PROBLEM: Sentence: 'the logo of a company writting on some clocks and a cup'. Reverse all words of length '4' in the given sentence.

SOLUTION: the ogol of a company writting on emos clocks and a cup

PROBLEM: Sentence: 'people are flying their kites in the sky'. Reverse all words of length '6' in the given sentence.

SOLUTION:
elpoep are gniylf their kites in the sky