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 fire hydrant placed in the street just off the curb'. Reverse all words of length '3' in the given sentence.

A: a fire hydrant placed in eht street just ffo eht curb
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Q: Sentence: 'the bathroom has a toilet a window and a sink'. Reverse all words of length '8' in the given sentence.

A: the moorhtab has a toilet a window and a sink
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Q: Sentence: 'a group of small boats sail down a stream'. Reverse all words of length '2' in the given sentence.

A:
a group fo small boats sail down a stream
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