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: 'an alarm clock sitting with other objects in a window sill'. Reverse all words of length '5' in the given sentence.
an mrala kcolc sitting with rehto objects in a window sill

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

Sentence: 'a man throwing a frisbee in a field at night'. Reverse all words of length '2' in the given sentence.

a man throwing a frisbee ni a field ta night