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: 'chair and apartment size refrigerator in a small room'. Reverse all words of length '12' in the given sentence.
Example Output: chair and apartment size rotaregirfer in a small room

Example Input: Sentence: 'a man laying on a bench and a woman next to him touching his face'. Reverse all words of length '4' in the given sentence.
Example Output: a man laying on a bench and a woman txen to him touching his ecaf

Example Input: Sentence: 'an elephant is standing in the road by the truck'. Reverse all words of length '5' in the given sentence.
Example Output:
an elephant is standing in the road by the kcurt