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 black and white image of a wall with a stop sign on it'. Reverse all words of length '5' in the given sentence.
[A]: a kcalb and etihw egami of a wall with a stop sign on it


[Q]: Sentence: 'a group of five people in white snow outfits cross country skiing'. Reverse all words of length '5' in the given sentence.
[A]: a puorg of five people in etihw snow outfits ssorc country skiing


[Q]: Sentence: 'a train speeding by as a man stands on a loading platform'. Reverse all words of length '8' in the given sentence.
[A]:
a train gnideeps by as a man stands on a loading mroftalp