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 lone man smiles brightly in front of his computer'. Reverse all words of length '1' in the given sentence.

A: a lone man smiles brightly in front of his computer
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Q: Sentence: 'a computer and laptop sitting on a desk'. Reverse all words of length '6' in the given sentence.

A: a computer and potpal sitting on a desk
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Q: Sentence: 'a group of people waiting around for a train'. Reverse all words of length '2' in the given sentence.

A:
a group fo people waiting around for a train
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