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.

[Q]: Sentence: 'a man assisting a person on a horse on a race track'. Reverse all words of length '3' in the given sentence.
[A]: a nam assisting a person on a horse on a race track


[Q]: Sentence: 'an omelet with hash browns and toast as breakfast'. Reverse all words of length '5' in the given sentence.
[A]: an omelet with hash browns and tsaot as breakfast


[Q]: Sentence: 'the bicyclists race toward an old brick church'. Reverse all words of length '2' in the given sentence.
[A]:
the bicyclists race toward na old brick church