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: 'the couple are smiling at each other as they sit on a bench'. Reverse all words of length '4' in the given sentence.
[A]: the couple are smiling at hcae other as yeht sit on a bench


[Q]: Sentence: 'a street pole with some signs sitting on top of it'. Reverse all words of length '6' in the given sentence.
[A]: a teerts pole with some signs sitting on top of it


[Q]: Sentence: 'two birds standing and sticking their heads in muddy water'. Reverse all words of length '3' in the given sentence.
[A]:
owt birds standing dna sticking their heads in muddy water