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.

Example Input: Sentence: 'someones living room with tiled flooring and a rocking chair'. Reverse all words of length '3' in the given sentence.
Example Output: someones living room with tiled flooring dna a rocking chair

Example Input: Sentence: 'a vase of flowers sitting near a candle on a sink'. Reverse all words of length '6' in the given sentence.
Example Output: a vase of flowers sitting near a eldnac on a sink

Example Input: Sentence: 'a person with an umbrella is standing by a fountain'. Reverse all words of length '2' in the given sentence.
Example Output:
a person with na umbrella si standing yb a fountain