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 siting on the ground and decorating a parking meter'. Reverse all words of length '5' in the given sentence.
answer:
a person siting on the ground and decorating a parking retem


question:
Sentence: 'a couple of trains are sitting on some tracks'. Reverse all words of length '2' in the given sentence.
answer:
a couple fo trains are sitting no some tracks


question:
Sentence: 'two slices of pepperoni pizza are next a more lighter fair'. Reverse all words of length '1' in the given sentence.
answer:

two slices of pepperoni pizza are next a more lighter fair