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: 'a man is standing on a sidewalk with his bike'. Reverse all words of length '3' in the given sentence.
a nam is standing on a sidewalk with sih bike

Sentence: 'a bedroom with clothes scattered everywhere and an unmade bed'. Reverse all words of length '7' in the given sentence.
a moordeb with sehtolc scattered everywhere and an unmade bed

Sentence: 'a woman sitting on a bed with a cake'. Reverse all words of length '3' in the given sentence.

a woman sitting on a deb with a cake