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: 'a person siting on the ground and decorating a parking meter'. Reverse all words of length '5' in the given sentence.
Example Output: a person siting on the ground and decorating a parking retem

Example Input: Sentence: 'a tennis player is swinging at a tennis ball'. Reverse all words of length '2' in the given sentence.
Example Output: a tennis player si swinging ta a tennis ball

Example Input: Sentence: 'the old house features a decorated outdoor refrigerator'. Reverse all words of length '3' in the given sentence.
Example Output:
eht dlo house features a decorated outdoor refrigerator