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: 'a large long train on a steel track'. Reverse all words of length '2' in the given sentence.

SOLUTION: a large long train no a steel track

PROBLEM: Sentence: 'a person on a parachute landing on the water'. Reverse all words of length '2' in the given sentence.

SOLUTION: a person no a parachute landing no the water

PROBLEM: Sentence: 'a person looking at themselves in the reflection of a silver wall of truck'. Reverse all words of length '7' in the given sentence.

SOLUTION:
a person gnikool at themselves in the reflection of a silver wall of truck