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 Q]: Sentence: 'three people on a tennis court playing tennis'. Reverse all words of length '6' in the given sentence.
[EX A]: three elpoep on a sinnet court playing sinnet

[EX Q]: Sentence: 'a group of people para sailing on a beach'. Reverse all words of length '5' in the given sentence.
[EX A]: a puorg of people para sailing on a hcaeb

[EX Q]: Sentence: 'a young many getting ready to serve a tennis ball on a clay court'. Reverse all words of length '5' in the given sentence.
[EX A]:
a gnuoy many getting ydaer to evres a tennis ball on a clay truoc