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tp stp id
A A_1 2
A A_1 36
A A_1 49
A A_2 2
A A_2 36
A A_2 42
A A_2 49
B B_1 2
B B_1 10
B B_1 42
B B_1 49
C null 10
C null 36
C null 42
C null 49