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 person on a surfboard riding a wave in the water'. Reverse all words of length '5' in the given sentence.
answer:
a person on a surfboard riding a wave in the retaw


question:
Sentence: 'a blue sign sitting on the side of a road next to a tree'. Reverse all words of length '1' in the given sentence.
answer:
a blue sign sitting on the side of a road next to a tree


question:
Sentence: 'a sink tub mirror and a washer and a dryer'. Reverse all words of length '4' in the given sentence.
answer:

a knis tub mirror and a washer and a dryer