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.

Ex Input:
Sentence: 'man extending arm with three bananas crosswise on it'. Reverse all words of length '4' in the given sentence.

Ex Output:
man extending arm htiw three bananas crosswise on it


Ex Input:
Sentence: 'a plate wit some very tasty looking treats'. Reverse all words of length '6' in the given sentence.

Ex Output:
a plate wit some very tasty looking staert


Ex Input:
Sentence: 'a small child standing behind four blue vases holding yellow flowers'. Reverse all words of length '7' in the given sentence.

Ex Output:

a small child standing behind four blue vases gnidloh yellow srewolf