Can George run?
Yes, he can.
Can Mark play football?
Yes, he can.
Can George swim?
No, he can't.
Can Sarah play football?
No, she can't.
Can George play football?
Yes, he can.
Can Sarah swim?
Yes, she can.
Can Mark ride a bike?
No, he can't.
Can George ride a bike?
No, he can't.
Can Mark swim?
No, he can't.
Can Sarah ride a bike?
Yes, she can.
Can Mark run?
Yes, he can.