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: 'an old fashioned setting of people playing tennis'. Reverse all words of length '6' in the given sentence.
Example Output: an old fashioned setting of elpoep playing sinnet

Example Input: Sentence: 'patio furniture set to look out over the ocean'. Reverse all words of length '3' in the given sentence.
Example Output: patio furniture tes to look tuo over eht ocean

Example Input: Sentence: 'a person wearing skis turned around in the snow'. Reverse all words of length '1' in the given sentence.
Example Output:
a person wearing skis turned around in the snow