Pyramid Schemes

Criss-cross puzzle grid. Use copy-to-clipboard to get a Sheets-friendly version.
13
24
10
8
7
69
5C

LEAMUSEAIRFIELDELEGIACAL
SYEVENTARABITOLIRRITANTS
IONICDAYLIGHTLEGIONARY
LIDIRISHEDIFIERSPRECLUDES
SETLEASEPISCINAESOLITAIRE
MARIAPROTISTASVENGALIS
DEERMEETSSATURNIC
DYERSWARMSILLIEST
ESTOTREMBLED
LASEIGNORE
OPALISSUES
SAFARI
STREEP

A binary tree with 3 levels. The nodes are black circles, with no numbers shown (the numbering used here is only for convenience). The top node points to nodes 2 and 3. Node 2 points to nodes 4 and 5. Node 3 points to nodes 5 and 6. All nodes on the bottom level (i.e. nodes 4, 5, 6) point to groups of 3 vertical dots. The leftmost group of vertical dots is only pointed to by node 4. The 2nd group is pointed to by nodes 4 and 5. The 3rd group is pointed to by nodes 5 and 6. The 4th group, which is the last group, is pointed to only by node 6.