There was a Fox who was very hungry and he went in a search of food which he could eat.
After a few time, He went and went on his journey, but couldn't find anything. Then he returned to his home again. While returning he saw a garden of vineyard in his neighborhood.
So he went in the garden of vineyard and saw some grapes at a little height from him, so he jump up high and tried to catch the grapes but he could not succeed.
He tried and tried, again and again, but then also he couldn't.
After so much hard work, he didn't succeed in his work and said :"THE GRAPES ARE SOUR", and went hungrily back to home.