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.

Q: Sentence: 'a wooden bench sits on top of a grass hill'. Reverse all words of length '2' in the given sentence.

A: a wooden bench sits no top fo a grass hill
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Q: Sentence: 'two large green and white jumbo jet planes on the tarmac'. Reverse all words of length '6' in the given sentence.

A: two large green and white jumbo jet senalp on the camrat
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Q: Sentence: 'small herd of goats running on unpaved road with three male onlooker'. Reverse all words of length '5' in the given sentence.

A:
llams herd of staog running on unpaved road with eerht male onlooker
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