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.
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Question: Sentence: 'a man is standing on a sidewalk with his bike'. Reverse all words of length '3' in the given sentence.

Answer: a nam is standing on a sidewalk with sih bike


Question: Sentence: 'a river filled with lots of boats and surrounded by buildings'. Reverse all words of length '4' in the given sentence.

Answer: a river filled htiw stol of boats and surrounded by buildings


Question: Sentence: 'a living room has a black sofa and a television'. Reverse all words of length '10' in the given sentence.

Answer:
a living room has a black sofa and a noisivelet