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: '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
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Q: Sentence: 'an elderly man in a jacket is walking outside of a window'. Reverse all words of length '3' in the given sentence.

A: an elderly nam in a jacket is walking outside of a window
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Q: Sentence: 'two people are standing next to each other'. Reverse all words of length '4' in the given sentence.

A:
two people are standing txen to hcae other
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