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.
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Question: Sentence: 'a man walking in the shore with a surfboard under his arm'. Reverse all words of length '3' in the given sentence.

Answer: a nam walking in eht shore with a surfboard under sih mra


Question: Sentence: 'a woman is up to bat at a softball game'. Reverse all words of length '2' in the given sentence.

Answer: a woman si pu ot bat ta a softball game


Question: Sentence: 'this very long room holds many interesting things'. Reverse all words of length '4' in the given sentence.

Answer:
siht yrev gnol moor holds ynam interesting things