+-------+     +----------+    +-----------+    +-------------+
| %hash | +-->| Anon Ref | +->| Anon hash | +->| Anon scalar |
+-------+ |   +----------+ |  +-----------+ |  +-------------+
| a   ----+   | addr   ----+  | drinks  ----+  | 1           |
| b   -----+  +----------+    +-----------+    +-------------+
+-------+  |
           |  +----------+    +-----------+    +-------------+
           +->| Anon Ref | +->| Anon hash | +->| Anon scalar |
              +----------+ |  +-----------+ |  +-------------+
              | addr   ----+  | drinks  ----+  | 2           |
              +----------+    +-----------+    +-------------+