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.

[EX Q]: Sentence: 'some people sitting on some benches flowers and buildings'. Reverse all words of length '3' in the given sentence.
[EX A]: some people sitting on some benches flowers dna buildings

[EX Q]: Sentence: 'a group of motorcycles parked in front of a truck'. Reverse all words of length '11' in the given sentence.
[EX A]: a group of selcycrotom parked in front of a truck

[EX Q]: Sentence: 'adult helping boy feed a young goat with a bottle'. Reverse all words of length '7' in the given sentence.
[EX A]:
adult gnipleh boy feed a young goat with a bottle