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.

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

Sentence: 'a couple of toothbrushes that are on a towel'. Reverse all words of length '6' in the given sentence.
a elpuoc of toothbrushes that are on a towel

Sentence: 'a truck parked on the side of a road in a field'. Reverse all words of length '3' in the given sentence.

a truck parked on eht side of a road in a field