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 person in a rowboat under an umbrella'. Reverse all words of length '5' in the given sentence.

Answer: a person in a rowboat rednu an umbrella


Question: Sentence: 'a row of parked buses sitting in front of a buiding'. Reverse all words of length '6' in the given sentence.

Answer: a row of dekrap buses sitting in front of a buiding


Question: Sentence: 'a hot dog sitting on a plate and in a bun with other food items'. Reverse all words of length '3' in the given sentence.

Answer:
a toh god sitting on a plate dna in a nub with other food items