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: 'this cat is sitting on a porch near a tire'. Reverse all words of length '7' in the given sentence.
answer:
this cat is gnittis on a porch near a tire


question:
Sentence: 'a computer keyboard and mouse sit on a desk'. Reverse all words of length '5' in the given sentence.
answer:
a computer keyboard and esuom sit on a desk


question:
Sentence: 'a large white train on a city street'. Reverse all words of length '4' in the given sentence.
answer:

a large white train on a ytic street