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: 'there are many animals standing on the top of this mountain'. Reverse all words of length '4' in the given sentence.
[A]: there are ynam animals standing on the top of siht mountain


[Q]: Sentence: 'a side way picture of woman dressed in a purple jacket'. Reverse all words of length '1' in the given sentence.
[A]: a side way picture of woman dressed in a purple jacket


[Q]: Sentence: 'a yellow sign for traffic on stanley street'. Reverse all words of length '4' in the given sentence.
[A]:
a yellow ngis for traffic on stanley street