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: 'multiple animals in a field while eating some grass'. Reverse all words of length '5' in the given sentence.
[A]: multiple animals in a dleif elihw eating some ssarg


[Q]: Sentence: 'a grey cat with green eyes looking straight ahead'. Reverse all words of length '1' in the given sentence.
[A]: a grey cat with green eyes looking straight ahead


[Q]: Sentence: 'three men are using laptops at a library'. Reverse all words of length '7' in the given sentence.
[A]:
three men are using spotpal at a yrarbil