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 grey cat with green eyes looking straight ahead'. Reverse all words of length '1' in the given sentence.
a grey cat with green eyes looking straight ahead

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 nenon four way stop sign on a street'. Reverse all words of length '6' in the given sentence.

a nenon four way stop sign on a teerts