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+      * Complex 1 or 1 OR 2 of 3 [corporation]
+      * Escrow: 2 of 3 (A | B | E); then 2 of 2 (AE) OR 2 of 2 (BE); then 2 of 2 (AE) OR 2 of 2 (BE) OR 2 of 2 after time-delay (AB)