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 red pair of scissors on top of an envelope'. Reverse all words of length '2' in the given sentence.
answer:
a red pair fo scissors no top fo na envelope


question:
Sentence: 'pair of dogs watching television in living area of home'. Reverse all words of length '8' in the given sentence.
answer:
pair of dogs gnihctaw television in living area of home


question:
Sentence: 'a very colorful bird is not looking happy at all'. Reverse all words of length '2' in the given sentence.
answer:

a very colorful bird si not looking happy ta all