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B1-B2, B3-B4, B11-B31, B12-B32, B13-B33 - Coggle Diagram
B1-B2
B12
B11
B13
B3-B4
B33
B31
B32
B11-B31
B102
B101
B103
B12-B32
B202
B201
B203
B13-B33
B302
B301
B303