a) Write what the people can or can't do, as in the example.

Mark can play the piano, climb a tree, and use a computer. He can't ride a horse. Sally can climb a tree and ride a horse. She can't play the piano or use a computer. Peter can climb a tree and ride a horse. He can't play the piano or use a computer. Brian can play the piano and use a computer. He can't climb a tree or ride a horse. Meg can use a computer. She can't play the piano, climb a tree, or ride a horse.