0       |                |        |
        |-------------------------|
        |                |        |
        :                :        :
        |                |        |
        |-------------------------|
511     |                |        |
        |=========================|
1 x 512 |No entries/page |      3 |
        |-------------------------|
        |Left point      |      2 |>-2-----2-+
        |- - - - - - - - - - - - -|          |
        |Dbf             |      0 |          2
        |- - - - - - - - - - - - -|          V Link to lower level
        |Key             |ENGEL   |          |
        |-------------------------|          |
        |Left point      |      3 |>-3----+  |
        |- - - - - - - - - - - - -|       |  |
        |Dbf             |      0 |       3  |
        |- - - - - - - - - - - - -|       |  |
        |Key             |LIME    |       |  |
        |-------------------------|       |  |
        |Left point      |      4 |>-4-+  |  |
        |- - - - - - - - - - - - -|    |  |  |
        |Dbf             |      0 |    4  |  |
        |- - - - - - - - - - - - -|    |  |  |
        |Key             |PINE    |    |  |  |
        |-------------------------|    |  |  V                      DBF
        :                :        :    |  3  2                     |=========================|
        :                :        :    |  |  |                     :                         :
        |=========================|<---)--)-2+    Link to DBF      |=========================|
2 x 512 |No entries/page |      3 |    |  |       +-f-f-f-------> 1| Finger                  |
        |-------------------------|    4  3       f                |                         |
        |Left point      |      ? |    |  |       |                |-------------------------|
        |- - - - - - - - - - - - -|    |  |   +---(-b---b-------> 2| Banana                  |
        |Dbf             |      7 |    |  |   b   f                |                         |
        |- - - - - - - - - - - - -|    |  |   |   |                |-------------------------|
        |Key             |ABE     |>-a-(-a(--+ b  f        +-m--> 3| Moses                   |
        |-------------------------|    |  |  | |  |        m       |                         |
        |Left point      |      ? |    4  3  a b  f        |       |-------------------------|
        |- - - - - - - - - - - - -|    |  |  | |  |  +-e---(-e--> 4| Engel                   |
        |Dbf             |      2 |>-b-(-b(--(-+  f  e     m       |                         |
        |- - - - - - - - - - - - -|    |  |  |    |  |     |       |-------------------------|
        |Key             |BANANA  |    4  3  a    f  e  +--(-l--> 5| Lime                    |
        |-------------------------|    |  |  |    |  |  |  |       |                         |
        :                :        :    |  |  a    f  e  l  m       |-------------------------|
        |-------------------------|    |  |  |    |  |  |  |  +-> 6| Pine                    |
        |Left point      |      ? |    |  |  a    f  e  l  m  |    |                         |
        |- - - - - - - - - - - - -|    |  |  |    |  |  |  |  p    |-------------------------|
        |Dbf             |      4 |    4  3  +----(--(--(--(--(-> 7| Abe                     |
        |- - - - - - - - - - - - -|    |  |       |  |  |  m  |    |                         |
        |Key             |ENGEL   |>-e-(--(--e----(-e+  l  |  p    |-------------------------|
        |- - - - - - - - - - - - -|    4  3       |     |  m  |    |                         |
        :                :        :    |  |       |     |  |  p    |                         |
        |=========================|<-3-)--+       f     l  m  |    |                         |
3 x 512 |No entries/page |      2 |    |          |     l  |  p    |-------------------------|
        |-------------------------|    |          |     |  m  |    |                         |
        |Left point      |      ? |    4          f     l  |  p    |                         |
        |- - - - - - - - - - - - -|    |          |     |  m  |    |-------------------------|
        |Dbf             |      1 |    |          f     l  |  p    |                         |
        |- - - - - - - - - - - - -|    |          |     |  m  |    :                         :
        |Key             |FINGER  |>-f-(-f--f--f--+     l  |  p    |-------------------------|
        |-------------------------|    |                |  m  |
        |Left point      |      ? |    4                l  |  p
        |- - - - - - - - - - - - -|    |                |  m  |
        |Dbf             |      5 |    |                l  |  p
        |- - - - - - - - - - - - -|    |                |  m  |
        |Key             |LIME    |>-l-(---l---l--------+  |  p
        |-------------------------|    |                   m  |
        :                :        :    4                   |  p
        :                :        :    |                   m  |
        |=========================|<---+                   |  p
4 x 512 |No entries/page |      2 |                        m  |
        |-------------------------|                        |  p
        |Left point      |      ? |                        m  |
        |- - - - - - - - - - - - -|                        |  p
        |Dbf             |      3 |                        m  |
        |- - - - - - - - - - - - -|                        |  p
        |Key             |MOSES   |>-m--m--m--m--m--m------+  |
        |-------------------------|                           p
        |Left point      |      ? |                           |
        |- - - - - - - - - - - - -|                           p
        |Dbf             |      6 |                           |
        |- - - - - - - - - - - - -|                           p
        |Key             |PINE    |>-p--p--p--p--p--p---------+
        |-------------------------|
        :                :        :
        :                :        :
        |=========================|