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: 'an aboveground subway car on a city street'. Reverse all words of length '6' in the given sentence.
answer:
an aboveground yawbus car on a city teerts


question:
Sentence: 'a pair of melted scissors on top of a reflective surface'. Reverse all words of length '7' in the given sentence.
answer:
a pair of melted scissors on top of a reflective ecafrus


question:
Sentence: 'a man smiles as he works on his mac laptop'. Reverse all words of length '5' in the given sentence.
answer:

a man smiles as he skrow on his mac laptop