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 stop sign next to houses with christmas lights'. Reverse all words of length '4' in the given sentence.

A: a pots ngis txen to houses htiw christmas lights
****
Q: Sentence: 'an image of a group of people sitting in the snow'. Reverse all words of length '6' in the given sentence.

A: an image of a group of elpoep sitting in the snow
****
Q: Sentence: 'a man looking on as others sit in airplane seats'. Reverse all words of length '2' in the given sentence.

A:
a man looking no sa others sit ni airplane seats
****