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: 'a very small shiny metal cup with some food in it'. Reverse all words of length '4' in the given sentence.
[EX A]: a yrev small shiny metal cup htiw emos doof in it

[EX Q]: Sentence: 'a baby elephant in the middle of a field'. Reverse all words of length '3' in the given sentence.
[EX A]: a baby elephant in eht middle of a field

[EX Q]: Sentence: 'a white kitchen is empty with the refrigerator door open'. Reverse all words of length '1' in the given sentence.
[EX A]:
a white kitchen is empty with the refrigerator door open