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 group of people loading a tour bus'. Reverse all words of length '3' in the given sentence.

A: a group of people loading a tour sub
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Q: Sentence: 'a happy white man with sunglasses on a boat'. Reverse all words of length '1' in the given sentence.

A: a happy white man with sunglasses on a boat
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Q: Sentence: 'a man walking down a road with a horse beside him'. Reverse all words of length '1' in the given sentence.

A:
a man walking down a road with a horse beside him
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