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13 rows affected
Name Surname Period Sport History English Geography
Luke Green 1 30 20 23 null
Mary Brown 1 17 15 null 30
John Red 1 18 null 21 30
Walter White 1 22 20 5 30
Luke Green 2 30 20 23 null
Mary Brown 2 null 15 17 30
John Red 2 18 null 11 30
Walter White 2 2 32 1 30
Luke Green 3 20 15 15 12
Mary Brown 3 0 3 null 4
John Red 3 18 40 21 30
Walter White 3 17 19 15 30
John Red 3 null 23 23 30
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13
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4