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Tom and Kate are brother and sister. They like music. Kate can play the piano. But she can't play the violin. Tom can't play the piano, but he can play the violin. Today they want to carry a piano into Kate's bedroom. The piano is big. They can't carry it. Kate and Tom's parents aren't at home. They can't help them to carry the piano. But they have two cousin sisters here today. They ask them to help.