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 man and a dog in the water with a surfboard'. Reverse all words of length '2' in the given sentence.
answer:
a man and a dog ni the water with a surfboard


question:
Sentence: 'a woman taking her surf board into the ocean'. Reverse all words of length '3' in the given sentence.
answer:
a woman taking reh surf board into eht ocean


question:
Sentence: 'several people in dress clothing including one wearing a gas mask'. Reverse all words of length '9' in the given sentence.
answer:

several people in dress clothing gnidulcni one wearing a gas mask