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 person in skis is standing in the snow'. Reverse all words of length '2' in the given sentence.
a person ni skis si standing ni the snow

Sentence: 'a gentleman and child in a vintage picture with a horse'. Reverse all words of length '4' in the given sentence.
a gentleman and child in a vintage picture htiw a horse

Sentence: 'a white cat in front of a huge monitor and scanner'. Reverse all words of length '3' in the given sentence.

a white tac in front of a huge monitor dna scanner