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 train is in a depot at the platform entry'. Reverse all words of length '2' in the given sentence.
a train si ni a depot ta the platform entry

Sentence: 'a street pole with some signs sitting on top of it'. Reverse all words of length '6' in the given sentence.
a teerts pole with some signs sitting on top of it

Sentence: 'a man is selling fruit at his fruit stand'. Reverse all words of length '2' in the given sentence.

a man si selling fruit ta his fruit stand