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 baby elephant in the middle of a field'. Reverse all words of length '3' in the given sentence.
a baby elephant in eht middle of a field

Sentence: 'a young brown horse in a blue jacket running in a barn'. Reverse all words of length '4' in the given sentence.
a young brown horse in a eulb jacket running in a nrab

Sentence: 'a white plate topped with heart shaped waffles next to bacon and eggs'. Reverse all words of length '3' in the given sentence.

a white plate topped with heart shaped waffles next to bacon dna eggs