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: 'a train platform at a train stop with brick style flooring'. Reverse all words of length '2' in the given sentence.
[EX A]: a train platform ta a train stop with brick style flooring

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

[EX Q]: Sentence: 'a man in a fedora walks through a crowd holding umbrellas'. Reverse all words of length '2' in the given sentence.
[EX A]:
a man ni a fedora walks through a crowd holding umbrellas