instruction:
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.
question:
Sentence: 'a cat is playing with the bottom part of the umbrella'. Reverse all words of length '3' in the given sentence.
answer:
a tac is playing with eht bottom part of eht umbrella


question:
Sentence: 'the double decker bus is headed for its destination'. Reverse all words of length '2' in the given sentence.
answer:
the double decker bus si headed for its destination


question:
Sentence: 'four men at the end of a tennis court on a sunny day'. Reverse all words of length '5' in the given sentence.
answer:

four men at the end of a tennis truoc on a ynnus day