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.
--------
Question: Sentence: 'a man laying on a bench and a woman next to him touching his face'. Reverse all words of length '4' in the given sentence.

Answer: a man laying on a bench and a woman txen to him touching his ecaf


Question: Sentence: 'a red and white jet is taking off and some buildings'. Reverse all words of length '2' in the given sentence.

Answer: a red and white jet si taking off and some buildings


Question: Sentence: 'a small boy is playing with a plastic tennis racket'. Reverse all words of length '7' in the given sentence.

Answer:
a small boy is gniyalp with a citsalp tennis racket