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: 'two kids playing soccer with a ball while a referee watches closely'. Reverse all words of length '4' in the given sentence.

Answer: two sdik playing soccer htiw a llab while a referee watches closely


Question: Sentence: 'a person that has their skis crossed in the air as they snow ski'. Reverse all words of length '4' in the given sentence.

Answer: a person taht has their siks crossed in the air as yeht wons ski


Question: Sentence: 'elderly man happily cutting into a goodbye cake'. Reverse all words of length '1' in the given sentence.

Answer:
elderly man happily cutting into a goodbye cake