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 person in bear feet standing on a skateboard'. Reverse all words of length '4' in the given sentence.

A: a person in raeb teef standing on a skateboard
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Q: Sentence: 'a man assisting a person on a horse on a race track'. Reverse all words of length '3' in the given sentence.

A: a nam assisting a person on a horse on a race track
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Q: Sentence: 'a baked dish has been coated with powder'. Reverse all words of length '3' in the given sentence.

A:
a baked dish sah been coated with powder
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