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 cat is playing with the bottom part of the umbrella'. Reverse all words of length '3' in the given sentence.

A: a tac is playing with eht bottom part of eht umbrella
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Q: Sentence: 'a large eared dog sitting on an office chair'. Reverse all words of length '3' in the given sentence.

A: a large eared god sitting on an office chair
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Q: Sentence: 'a green street light on a city street'. Reverse all words of length '5' in the given sentence.

A:
a neerg street thgil on a city street
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