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 black cow stands alone in a grassy field'. Reverse all words of length '3' in the given sentence.
[A]: a black woc stands alone in a grassy field


[Q]: Sentence: 'a girl sitting on a kitchen counter drinking wine'. Reverse all words of length '8' in the given sentence.
[A]: a girl sitting on a kitchen counter gniknird wine


[Q]: Sentence: 'an open area with numerous bags and moving trucks'. Reverse all words of length '4' in the given sentence.
[A]:
an nepo aera htiw numerous sgab and moving trucks