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: 'a photo in an airport showing a backpack and a cell phone'. Reverse all words of length '8' in the given sentence.
answer:
a photo in an airport showing a kcapkcab and a cell phone


question:
Sentence: 'a surfer in a wetsuit riding the crest of a wave'. Reverse all words of length '1' in the given sentence.
answer:
a surfer in a wetsuit riding the crest of a wave


question:
Sentence: 'a man with glasses and a tie on is standing'. Reverse all words of length '3' in the given sentence.
answer:

a nam with glasses dna a eit on is standing