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.

Sentence: 'a magazine cover with a surfer carrying a white surfboard'. Reverse all words of length '9' in the given sentence.
a magazine cover with a surfer carrying a white draobfrus

Sentence: 'a large flock of birds fly through the sky'. Reverse all words of length '3' in the given sentence.
a large flock of birds ylf through eht yks

Sentence: 'group of people sitting in a living room holding up white controllers to a television'. Reverse all words of length '2' in the given sentence.

group fo people sitting ni a living room holding pu white controllers ot a television