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: 'decorative street signs on a post in front of trees'. Reverse all words of length '10' in the given sentence.

SOLUTION: evitaroced street signs on a post in front of trees

PROBLEM: Sentence: 'a grey cat with green eyes looking straight ahead'. Reverse all words of length '1' in the given sentence.

SOLUTION: a grey cat with green eyes looking straight ahead

PROBLEM: Sentence: 'a black and white cow standing in some straw'. Reverse all words of length '8' in the given sentence.

SOLUTION:
a black and white cow gnidnats in some straw