When the third set began, she took off, winning 11 of 12 points.

Soon a completely different set of rules began to develop.

For example, a set might begin with "This can either be a friend to man or an enemy."

After a few years separate sets began to be used.

And although she seemed to compose herself again as the second set began, it didn't last.

Upon Joyce's death, however, a different set of hands began to shape his image.

"Working," the computer said again, and then a different set of data began to fill the monitor.

A set of doors open behind the boat before it began to travel backwards into another room.

Another set of hoses began to drop from the sky.

But by then, a new set of problems had begun for Barbaro.