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: 'looking down at skiers holding their skis on the ski slope'. Reverse all words of length '7' in the given sentence.
answer:
gnikool down at skiers gnidloh their skis on the ski slope


question:
Sentence: 'a bathroom with white toilet and walls and blue accent bars'. Reverse all words of length '5' in the given sentence.
answer:
a bathroom with etihw toilet and sllaw and blue accent bars


question:
Sentence: 'a group of surfboard are stacked in a shed'. Reverse all words of length '4' in the given sentence.
answer:

a group of surfboard are stacked in a dehs