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 chair and a table against a stone wall with a red clock and decorations on display'. Reverse all words of length '4' in the given sentence.
[A]: a chair and a table against a stone llaw htiw a red clock and decorations on display


[Q]: Sentence: 'a couple of trains are sitting on some tracks'. Reverse all words of length '2' in the given sentence.
[A]: a couple fo trains are sitting no some tracks


[Q]: Sentence: 'a freeway over pass sign over a freeway filled with traffic'. Reverse all words of length '7' in the given sentence.
[A]:
a yaweerf over pass sign over a yaweerf filled with ciffart