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 orange longhorn bull stands among the herd'. Reverse all words of length '2' in the given sentence.
na orange longhorn bull stands among the herd

Sentence: 'a red and white jet is taking off and some buildings'. Reverse all words of length '2' in the given sentence.
a red and white jet si taking off and some buildings

Sentence: 'two young boys standing on grass near a fence'. Reverse all words of length '8' in the given sentence.

two young boys gnidnats on grass near a fence