instruction:
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.
question:
Sentence: 'the couple are smiling at each other as they sit on a bench'. Reverse all words of length '4' in the given sentence.
answer:
the couple are smiling at hcae other as yeht sit on a bench


question:
Sentence: 'there is no image to provide a caption for'. Reverse all words of length '7' in the given sentence.
answer:
there is no image to edivorp a noitpac for


question:
Sentence: 'a blue city bus with people walking around'. Reverse all words of length '3' in the given sentence.
answer:

a blue city sub with people walking around