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: 'multiple people shopping around the farmers market during the day'. Reverse all words of length '6' in the given sentence.
multiple elpoep shopping dnuora the farmers tekram gnirud the day

Sentence: 'a herd of zebra standing in a forest'. Reverse all words of length '1' in the given sentence.
a herd of zebra standing in a forest

Sentence: 'a person skiing near a group of trees'. Reverse all words of length '1' in the given sentence.

a person skiing near a group of trees