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 group of three men are looking at a motorcycle'. Reverse all words of length '2' in the given sentence.
a group fo three men are looking ta a motorcycle

Sentence: 'a meal consisting of greens rice meat in sauce and banana'. Reverse all words of length '4' in the given sentence.
a laem consisting of greens ecir taem in sauce and banana

Sentence: 'a man and baby elephant standing near a tree'. Reverse all words of length '1' in the given sentence.

a man and baby elephant standing near a tree