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: 'an umbrella sitting on top of a hill next to a body of water'. Reverse all words of length '4' in the given sentence.
[A]: an umbrella sitting on top of a llih txen to a ydob of water


[Q]: Sentence: 'an excel airways plane sitting on the tarmac'. Reverse all words of length '7' in the given sentence.
[A]:
an excel syawria plane gnittis on the tarmac