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

A: a person parasails in water htiw mountains in the background
****
Q: Sentence: 'a bird sitting in a tree next to a citrus fruit'. Reverse all words of length '6' in the given sentence.

A: a bird sitting in a tree next to a surtic fruit
****
Q: Sentence: 'two horses one is white the other is brown and white and some water'. Reverse all words of length '6' in the given sentence.

A:
two sesroh one is white the other is brown and white and some water
****