A Gardener wanted his Sons to get used to gardening. As he was dying, he
called them up and said to them:
"Children, when I am dead, look for what is hidden in the vineyard."
The Sons thought that it was a treasure, and when their father died,
they began to dig there, and dug up the whole ground. They did not find
the treasure, but they ploughed the vineyard up so well that it brought
forth more fruit than ever.