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 woman is taking a picture of her reflection in the mirror'. Reverse all words of length '6' in the given sentence.
a woman is gnikat a picture of her reflection in the rorrim

Sentence: 'a woman about to serve a tennis ball'. Reverse all words of length '2' in the given sentence.
a woman about ot serve a tennis ball

Sentence: 'a fuzzy teddy bear sitting on top of a boulder'. Reverse all words of length '2' in the given sentence.

a fuzzy teddy bear sitting no top fo a boulder