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 group of boys surfing in water'. Reverse all words of length '4' in the given sentence.

Answer: a group of syob surfing in water


Question: Sentence: 'a room with an open suitcase on the floor and clothes strewn about'. Reverse all words of length '2' in the given sentence.

Answer: a room with na open suitcase no the floor and clothes strewn about


Question: Sentence: 'a couple of kids sitting down staring at a kite'. Reverse all words of length '4' in the given sentence.

Answer:
a couple of sdik sitting nwod staring at a etik