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: 'this railway is lit up very well this evening'. Reverse all words of length '2' in the given sentence.

SOLUTION: this railway si lit pu very well this evening

PROBLEM: Sentence: 'some people sitting on some benches flowers and buildings'. Reverse all words of length '3' in the given sentence.

SOLUTION: some people sitting on some benches flowers dna buildings

PROBLEM: Sentence: 'a parking meter is displayed with a compact car behind it'. Reverse all words of length '9' in the given sentence.

SOLUTION:
a parking meter is deyalpsid with a compact car behind it