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 man in a blue shirt is playing tennis'. Reverse all words of length '3' in the given sentence.
answer:
a nam in a blue shirt is playing tennis


question:
Sentence: 'a woman holding a stuffed bear dressed as santa'. Reverse all words of length '2' in the given sentence.
answer:
a woman holding a stuffed bear dressed sa santa


question:
Sentence: 'a car sitting at a stop sign in a city'. Reverse all words of length '7' in the given sentence.
answer:

a car gnittis at a stop sign in a city