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: 'the cox is standing behind the fence alone'. Reverse all words of length '2' in the given sentence.

Answer: the cox si standing behind the fence alone


Question: Sentence: 'a person parasails in water with mountains in the background'. Reverse all words of length '4' in the given sentence.

Answer: a person parasails in water htiw mountains in the background


Question: Sentence: 'a brown and white horse stands facing some mountains'. Reverse all words of length '1' in the given sentence.

Answer:
a brown and white horse stands facing some mountains