── AAA ───┬── BBB ──┬── CCC ────────────
BASE07 abc│PANE00 ab│PANE00 abcdefghij
defghij   │cdefghij │PANE01 abcdefghij
BASE08 abc│PANE01 ab│PANE02 abcdefghij
defghij   │cdefghij │PANE03 abcdefghij
BASE09 abc│PANE02 ab│PANE04 abcdefghij
defghij   │cdefghij │
BASE10 abc│PANE03 ab│
defghij   │cdefghij │
BASE11 abc│PANE04 ab│
defghij   │cdefghij │
BASE12 abc│         │
defghij   │         │
          │         │