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 man is standing on a sidewalk with his bike'. Reverse all words of length '3' in the given sentence.
[A]: a nam is standing on a sidewalk with sih bike


[Q]: Sentence: 'a young boy plays with a phone sitting on the ground'. Reverse all words of length '6' in the given sentence.
[A]: a young boy plays with a phone sitting on the dnuorg


[Q]: Sentence: 'a person riding a skate baord at a skate park'. Reverse all words of length '1' in the given sentence.
[A]:
a person riding a skate baord at a skate park