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: 'there is a large black bear that is siting on a rock'. Reverse all words of length '5' in the given sentence.

A: ereht is a egral kcalb bear that is siting on a rock
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Q: Sentence: 'a young baseball catcher about to throw the ball'. Reverse all words of length '3' in the given sentence.

A: a young baseball catcher about to throw eht ball
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Q: Sentence: 'three zebras grazing on the grass on a field'. Reverse all words of length '7' in the given sentence.

A:
three zebras gnizarg on the grass on a field
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