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.

Sentence: 'one white and black sheep and one brown and black sheep'. Reverse all words of length '5' in the given sentence.
one etihw and kcalb peehs and one nworb and kcalb peehs

Sentence: 'looking down at skiers holding their skis on the ski slope'. Reverse all words of length '7' in the given sentence.
gnikool down at skiers gnidloh their skis on the ski slope

Sentence: 'a young woman walking down the steps of a narrow alley'. Reverse all words of length '1' in the given sentence.

a young woman walking down the steps of a narrow alley

