TASK DEFINITION: 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.
PROBLEM: Sentence: 'an aboveground subway car on a city street'. Reverse all words of length '6' in the given sentence.

SOLUTION: an aboveground yawbus car on a city teerts

PROBLEM: Sentence: 'a man in a suit has a phone up to his face'. Reverse all words of length '1' in the given sentence.

SOLUTION: a man in a suit has a phone up to his face

PROBLEM: Sentence: 'a black cat laying on a wood bench'. Reverse all words of length '3' in the given sentence.

SOLUTION:
a black tac laying on a wood bench