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 herd of horses is exercised in the yard led by a man on horseback'. Reverse all words of length '6' in the given sentence.
answer:
a herd of sesroh is exercised in the yard led by a man on horseback


question:
Sentence: 'an alarm clock sitting with other objects in a window sill'. Reverse all words of length '5' in the given sentence.
answer:
an mrala kcolc sitting with rehto objects in a window sill


question:
Sentence: 'a guy is jumping off a skateboard in the air'. Reverse all words of length '1' in the given sentence.
answer:

a guy is jumping off a skateboard in the air