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 group of people standing on the beach'. Reverse all words of length '8' in the given sentence.

A: there is a group of people gnidnats on the beach
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Q: Sentence: 'giraffes are standing in the grass near water and trees'. Reverse all words of length '4' in the given sentence.

A: giraffes are standing in the grass raen water and trees
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Q: Sentence: 'a pizza topped with eggs and cheese in an oven'. Reverse all words of length '6' in the given sentence.

A:
a pizza deppot with eggs and eseehc in an oven
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